Yep platinum lounge is good if you're out with the lads, a few nice birds working there at the mo

Not really any 'must do' things in chester though, it's just a generally nice city, good atmosphere, your mrs will love it i'm sure, small enough to walk round the city centre, take in the canals and the river, walk the roman walls, visit the amphitheatre, cathedral, loads of nice places to eat, this place is a fave of mine for a chilled out lunch:

http://www.duttonschester.co.uk/