Been here a couple times now -- once on a live music night, and once not.
The food is good from what I've had. They do have some gluten-free options as well, though you may want to check ahead of time. Their menu has been updated from what's on their website, so that's something to be aware of when planning ahead.
The atmosphere seems pretty nice. The staff seem busy and friendly. The place seemed quite busy both times I've been.
It's a nice spot to go on a visit to Banff.