i returned my 512 cause it wouldn't play for more than 6 minutes (I timed it). As far as the company goes, they function like a good business, they are prompt with returns and guarantees and all, but many of the 512s are bunk even though they are doing all the right things to push their product
1. give a good one for u guys to review in exchange for good press and ads a the most reputable gba spot on the net.
2. same with gbadev.org
3. buying littlewriter and pogoshell support even though both could be better, and they probably will once the cards are better..
--If you haven't seen any complaints, check out their help forums
www.help-forums.com