Amazing compact keyboard. I've owned 2 mechanical keyboards which were the K70 Rapidifre and the Blackwidow Ultimate 2016, and so far this is the best one to use. I use this for gaming on the go and gaming at home, and it never fails to disappoint.

Pros:
Build Quality (plastic, but little to no flex)
RGB lighting is dim-ish (good for my taste)
Double shot keycaps (feel very nice to type on)
Portable

Cons:
I haven't found any yet

This keyboard is awesome. I've only had keyboards with cherry mx blue switches and I have to say, the browns are much better for playing video games but not for typing (I like them a lot more than the blues for that reason). The lighting looks amazing and I like that it is managed through the function keys rather than an external software. The PBT caps feel amazing as expected. Overall, the build quality seems to be awesome. I highly recommend this over any other TKL keyboard in this price range (ex. the cooler master TKL keyboard) simply because this keyboard has pbt keycaps and I'm almost sure that the build quality is much better.

Overall great quality keyboard.

complaints:

Picture shows dots on the spacebar but mine did not have any dots on it. Not a big deal but it just bothers me that I didn't get exactly what the picture shows.

The lightning is dim.

This is my second mechanical keyboard after my Varmilo with Gateron Browns turned out to be unreliable (that's another story). Overall, the Ducky feels surprisingly nice to type on. I didn't think there'd be a big difference, but this thing just feels amazing. It's kind of weird how much I'm enjoying typing on it. It's quieter and feels far more stable. The stabilizers on wide keys are smoother. Pushing on the right corner of the space bar perfectly registers every time. Additionally the stabilizers are very quiet (the Varmilo stabilizers were the dummy switch type, but made this horrible high-pitched rattle that felt like nails on a chalkboard). Overall, it's incredibly nice to type on.

As far as the LEDs go, I've never had an RGB board before, but it's been pretty fun setting up different schemes. Pro tip: it seems that hitting fn-1, 2, 3, 4 will switch profiles. Within each profile, fn-f11 and fn-f12 store customized RGB patterns. The interface for setting this is hard to remember, but with a cheat-sheet in front of me, it wasn't too hard to setup cool gradients etc. They've implemented quite a bit of flexibility on this thing! Probably my only complaint about the lighting is that the lock LEDs (caps, scroll, num lock) are hidden behind the rather tall Ins, Home, and PgUp keys so they're hard to see. But that's a pretty minor quibble, and is probably related to my poor typing setup where the board is too far in front of me.

The double shot PBT keycaps feel very nice, with no perceptible seams between the keycap and the legend. I'm not sure if they contribute to the sound, but this thing is pretty quiet. That said, I have two minor issues. First, a few of my keys clearly have the black portion of the key not thinned away properly in parts of the legend. This leads to nonuniformity across some legends. This isn't a big deal, but the "e" is almost entirely dark on my Pause button with LEDs lit. My second complain it, similar to another reviewer here, having the primary and secondary symbols side-by-side instead of one on top and one on bottom seems silly to me. I'm getting used to it, but I wonder why not just use the standard?

The build quality of this board seems very high, but I have one minor issue (it may not even be an issue--we'll see over time): When the board arrived, it was slightly twisted, causing it to rock when set on a flat surface. I twisted it a bit the other way, and the plastic creaked a bit, but seemed to stay put. So for now, it's perfectly flat and doesn't rock at all, but it would be annoying if I had to keep doing this over time. It's only been a week, so we'll see. The USB cable routing is really nice since I use this on the couch sometimes and I don't want to have to worry about straining the connector.

Overall, I'm quite impressed with the feel of this board. The combination of the keycaps, solid construction, and MX Browns feels and sounds really, really nice. Having three options for the height is also really nice. Let's just hope these switches hold up unlike the Varmilo/Gateron combo I just threw in the garbage.

This is my first mechanical keyboard, and on the whole I like it pretty well, but I do have one or two issues. I'm a touch typist, but that doesn't extend to non-alplhanumeric characters like $ and ^. In fact, it barely extends to numbers; I can do them, but slowly and with a high error rate. Since I often type in a darkened room, I therefore need the number keys lighted.
For reasons I don't understand, this keyboard has the number and non-alphanumeric characters side-by-side rather than one above the other. This means that 2 characters are squeezed into 1/3 of the key's geography 1/6 for each. If they were above and below, they'd each have 1/2 the key, and thus could be larger and more easily readable. That just seems silly to me; why not take advantage of the available space? Because they're smaller, the very keys I need to see are dimmer.The same problem occurs on the |, ' ", [{ and other non-alplhanumeric keys, including the function keys.
One of the keys needed for turning on the backlighting, F10, is now so dim I can't see it, evidently from frequent use, though I don't see why. Luckily, the keys on either side are lit, so I can figure it out.
I like the keyboard's size and weight, and the switches are very nice. The inability to use the backlighting for its intended purpose, though, would prevent me from buying another.

Why go ABS when they now make PBT caps for this board? Get yourself this one for a more pleasant typing experience!

Be aware Ducky LEDs under the Spacebar "blinds" you when you slouch at the right angle. Not a big deal though.

Fun beginner's keyboard to use!