There is not a bad seat in the orchestra but the mezzanine is rather high (more like a balcony). My favourite aspect of this theatre is the lounge they have upstairs. If you like to get to the theatre early, go upstairs and have a drink and relax before the show. It's defintely a better place to relax than anything else in the near vicinity even though it's also a bit more pricey.
Pros: upstairs lounge, good sightlines
Cons: mezzanine is high