Just thought I'd throw my $0.02 in here -

Pros:
- Best ventilation of any indoor range I've been to.
- The staff is always helpful and friendly. Ed and Steve in particular.
- Tons of leagues, classes. Cody teaches AR-15 classes that fill up pretty quick.
- Rangemasters are EXTREMELY safety conscious. They will walk through doing safety checks quite often, especially on busy weekends. They are polite but firm. Awesome.
- Grimm Bros Brewhouse is around the corner. They have food trucks and fantastic beer. You can't go wrong after a few hours of shooting.

Cons:
- They're so popular, there's currently a wait list for membership. :P

As far as holster draw, it's pretty clearly written in their range rules (binder is very easy to find on every bench). Holster draw is only allowed after they've gone over the rules in person with you, and have observed that you are being safe. I believe you have to be a member, not just a guest.