I quite like The Lab. It's a small-ish bar just off Buchanan Street and a good spot to stop for a glass of wine after shopping in the evening. It also has a few outdoor seats and when the sun actually hits it it can be a really nice place to sit.
They have a decent selection of beers and wines and a small cocktail list. The cocktails aren't anything extraordinary but they're pretty fairly priced (as are most of the drinks options here). They do also serve food, typical bar snacks mostly and again fairly inexpensive, but at the moment they don't seem to serve it very late. I think the food is more aimed at the lunchtime crowd.
The staff are chatty and, if it's not too busy, will come over every now and then to ask if you'd like anything else to drink. It's not full waiter service and I do tend to go up to the bar to order but it's a nice touch that they're paying attention. read more