Gingerwildcat,
I went to Argassi last year with my girlfriend and we had a really good holiday. There are plenty of bars and restaurants so you'll be spoilt for choice. Our two favourite places to eat were Stars and Castaway although we didn't have a bad meal all holiday. There are bars to cater for everyone from lively bars banging out music to the early hours through to karaoki bars to quiter more relaxed places. The Red Lion was probably the best of the karaoki bars and also shows the most football if thats your thing.
Its easy to find your way round the resort as its basically just one long road stretching from The Green Frog at one end to the Church at the other with plenty of bars, restaurants and shops inbetween. There is another road about halfway along that leads away from the sea with more places to eat and drink. (You'll find Castaway up here)
The only downside for us was the fact that Argassi doesn't really have a beach. There is a very narrow strip of sand fitting no more than a handful of sunbeds and thats your lot. We found the buses to be quite reliable so you can always hop on one of these if you want to see other resorts or get a taste of traditional Greece which isn't really evident in Argassi.
One last thing - We got a taxi over to Laganas one night but it was a bit hectic for us. Unless you can cope with large groups of lads and girls struggling to stay upright I'd give it a miss. Must be getting old....
Steve