I can only comment on the staff and the experience...

I can only comment on the staff and the experience outside, not on the interior. My 69 year old mother and me get carded trying to enter. The doorman tells my 69 year old Mum she can't come into the venue as she doesn't have ID. Saying it's compulsory to have ID in Tennessee. Well I check the laws and this isn't the case at all, it's the same as elsewhere in the USA and you just can't sell minors alcohol.
There is no way she looks like she could be under 40 let alone 21. (Sorry mum)
Bad experience on our first night out on Beale.