I bought one on Amazon, had a bad printed key (90°) and anyway could not use such compact layout :
http://www.amazon.fr/gp/product/B00ATXXIPM/ref=oh_details_o04_s00_i00?ie=UTF8&psc=1So returned it but had time to test it in depth, with disassembly.
Global feeling is : robust keyboard, heavy, strong plastic case, metal pane.
So, what's wrong ?
What I find wrong with this keyboard is what I don't like with many new MX-type keyboards, keycaps are crap, made of very light plastic, just fitted on the MX switches cross guide, I find this a bad design. MX are not the problem, but if you just fit a cap on them, you get lateral movements, you may even get keys blocking when pressed on borders, not stabilized. This cross is tiny, if you don't press at the center of the key, MX switch won't like it...
On this particular keyboard :
- Layout is weird IMO, there is one lost key up-right of arrows keys... strange, hard to use
- Leds on lock keys is a good idea but these leds are much too lightning, it's almost painfull for eyes^^
- Letters seem sticked on keys and letter font/types are not consistant (looks like fast work made with illustrator...)
- This my only taste but I don't like MX black, in fact although I did not test all MX colors, the fact they use a linear spring means you need more force to hold a key down than to start pressing a key, I don't like this, buckling spring or high-end domes don't feel the same and it's much better IMO, even for gaming (some games require you to keep keys pressed for a while, W.O.T. for example)
This keyboard is very affordable for a mechanical but I would recommand you to test it before buying, looks nice on pics but you may not find it so nice to use...
(I find my new Compaq RT102 far much better and I had it for only 5 euro, I disassembled it and can definitely tell it's a high-end design and manufactured keyboard, even if it's not using springs)
My next review may be on the EPSON/FUJITSU 8720 clicky keyboard, the seller sent me pics of a keycap, made of 2 parts, even better than the model M caps : a cylinder and 2 other guides on key corners, I'll take pics while cleaning it.ADD : forgot to mention that like many MX keyboards, this one do not use metal stabilizers for long keys, instead it uses additionnal plastic guides, it could be worst, but it's not as efficient as traditionnal metal stabilizers found on old keyboards.