I had one for two days and took it back. It is made cheaply. Not very comfy IMO. The "soft" palm rest started showing signs of wear in 2 days.
I tried the thrustmaster tacticalboard and it was decent, but very big and went though two fo them in a month.
The Belkin n52 is the best I have used to date. Have had one for 3 years now and still working fine. Has tons of buttons, the software works well and is very comfy. I have 4 of these actually on all my PCs and one i carry with my laptop.
http://catalog.belkin.com/IWCatProdu...duct_Id=157024
I have one of these ordered to test out, the new zboard FANG, it loos promising.
http://www.zboard.com/experience/FANG/