I'm going to say right out that I'm not a heavy gamer. I do play occasional games, but plenty of other reviewers have covered the pros and cons of this keyboard for game use; what I haven't seen are a lot of reviews for general use.
When I recently built a new computer, I decided to treat myself to a back-lit keyboard. I write quite a bit at night, don't like keeping my office lights on, and, while I can touch type, I do need to be able to see function keys, the number pad, music controls etc,. The sidewinder is on the (rather short) list of keyboards that have this feature.
But while I bought it for the backlighting, I'm keeping it because as a keyboard on ANY terms, it's great. Key action has just the right resistance and clickiness; it feels great and is never annoying. Travel is less than any other keyboard I have, though more than a laptop, and the keys don't stick up annoyingly far; they are flatter than other desktop keyboards I've worked with. The action is also firm and not spongy at all: stroke feels positive and reminds you that you are using a well-built keyboard. So for me, it's an "A" in ergonomics.
As for the unique features, the back-lighting is great, and fully adjustable from off to bright-but-not-obnoxious. Some folks have complained that you can't change the color, but I personally like red, and find color changing keyboards a bit gimmicky (and just one more thing that can go wrong). The vertical row of six keys on the left are fully programmable using the Microsoft software (download only, strangely - if you don't have a fast connection you'll be waiting a while as it isn't included on a CD). Each can hold two macros (you switch from one set to another with a small switch at their base) and they are lit in yellow-orange to make them easy to delineate quickly. There are also three different keyboard profiles that you can set up and select based on use. I find ALL of these features useful, even when not gaming, particularly the programmable macro keys.
So overall, if you're looking for a nice looking keyboard with great action (really - I like the action on this keyboard more than ANY other keyboard I've ever had, and I've had a few), think back-lighting would be useful, and, like I, find the occasional delays and connection problems associated with wireless desktop sets an irritant, I'd urge you to give the Sidewinder a shot. For me, the gaming capabilities are just a great bonus to a wonderful keyboard.
Highly Recommended.