I have owned a Deck Legend Frost Tactile for a few weeks now. I also have a Max Nighthawk X8 and a Ducky Shine II, so I am familiar with the quirks of backlit keyboards.
It is an awesome keyboard. I don't mind the flat profile (although TG3 went flat to save money on different two-piece/doubleshot keycaps profile designs), and as such the PBT keycaps are bar none the best backlit keycaps. I like the big PBT case that is built like a tank. I really like Clears although the Ergo Clear board I have definitely lets me play/type longer.
However, these Deck keyboards have been around for a while now (since at least 2005). The brightness settings for my Frost are negligible; they're all full brightness. The + and Enter keys on the numpad look atrocious as only a small square over the LED has the second shot (all two shots have an obvious box around the dyesubbed areas). The font is meh (although replaceable partially with the TG3 BL82). And, perhaps most importantly in this 2013 mech keyboards economy: the price is absolutely terrible.
It seems there might be some new Deck branded products coming — they look like Duckys (surprise!). I want to write a full review because most reviews out there are either old or affected by the wow factor, but haven't made the time to do so.
If it were $50 cheaper it would be a very competitive (and worthwhile) alternative to Ducky and Keycool and Max.