I'm not a fan of places that need loud (in this case really loud) music to generate atmosphere. Before 9.30pm this is a fake but tolerable example of the "Irish" pub - although the connections with things Irish are distant at best. After 9.30pm it uninhabitable - and I say this as a guitar player. Tbilisi had a great tradition of live music - this is an abomination.
I also have a beef (grumpy old me) with places they don't sell local beer. Sooo pretentious.
Go (and leave) early.