I was here last Saturday with a friend for the Kraftwerk 3-D show. It is a pretty comfortable place to see a show.
I have been here for an Elvis Costello concert too, back in 2012. I think that worked a bit better than Kraftwerk, only because Kraftwerk really made me want to dance, not sit back.
But that isn't anything to do with the venue itself. Easy to find seats, great sound, pretty good sight lines no matter where you are. The layout is super simple and of course it is an easy walk from Union or King Station.
I can't comment on the drink service--I have never bothered. The seats do have cup holders.
If somebody I wanted to see was coming into town, and playing this venue, I would not be discouraged to buy a ticket. I wouldn't see a band just because they were playing this venue but I only see shows if I'm particularly interested in the band.
Great venue--recommended!