The emulation is fairly solid, (tempest and vurtualjag (i think are correct names) are the two emu's) I know i have one setup in my mame Cab. Strange as it sounds i was one of the suckers who bought it for ..hmm was it only $299 ...something like that.. when it came out. Most games are unfortantly trash, but there are a few gems. Alien Vs Predator was a very good game (console wise) when it came out. Iron Soldier was quite fun. And as far as TEMPEST goes, there is no better version (not counting arcade) it plays very well weith the Jag controler.After that it drifted into pretty avr to below avg games. I bought pretty much every game availble on E-bay and i can say other then the 3 mentioned, most where fairly poor.
The problem with Emulation for it is it was a gamepad + thumb pad with 3 buttons, then a keypad. Most games didnt require the keypad for gameplay (many did though) so useing a regular gamepad (or arcade panel) can be a problem. AvP and IS both require the keypad..
Overall worth a look, but if you dont try the right games you will be very disapointed i think.
Clok