Cracking game, even if you play it on your own but more fun to play online against people around the world. Online packs specify that you must have edition 00098, don't be put off by this, I have the SE edition which is 00303 and the packs play fine with no glitches and they're only £3.99 each. Also a great laugh if you have your friends round and a fridge full of beer. Enjoy, you know you deserve it.
We purchased the solus as we had the buzzers from previous games on the ps2, and they work fine. THe game itself looks brilliant in HD, with lots more characters to choose from and ALOT more varied questions (not American). It has online support to play against anyone in the world and you can even create your own quiz online (if you manage to log in). I have had problems with this which is why I give it 4 starts.
Great game for the family and at parties, worth the money if you have the buzzers already.