This place is a gem!
There is not really a bad seat in the house. With two balconies, it's a pretty vertical space, so the last row is not too far back.
Acoustically, it's nice and warm, without much natural reverberation, and dead silent (no blowing air sounds, nothing). It sounds more like a small club than a bit auditorium.
And it's beautifully ornate, like only good old theaters are. Even the lobby and washrooms are cool.
One Tip: the parking deck behind it is pretty slow to exit after an event here. You can self-pay at a pay-station in the attached Carnegie Museum, but have to wait in the same line to exit behind all the people scrounging the ashtray for quarters.
This to find street parking or somewhere else if you want to make a quick get-away.