It can be a little hard to see the action when the players venture into the nearest corner but it's not too bad. I've sat in 311 and similar sections around the arena for many Avalanche games; been coming to Avalanche games since the 90s.

As long as you don't get too close to the top of the arena, every seat is a great seat. Especially in the lower balcony sections like 311 where you don't have any stairs to climb because the seating area is so small. (Odd Numbered 300 sections).