I fly out of GLA a lot and think that the *G lounge is great...echoing earlier comments, especially about the waitress service.
In my experience, they dont do meals but do have a good selection of drinks and nibbles. There's not much of a view so I normally go in the corner with the TV...
Good show on the ticket prices. Use the UG's on the EDI and GLA flights as C is very quiet on Saturdays.
Have fun