Full disclosure here ... I lived in Vegas for 25 years, graduated from UNLV and am a die hard Rebel fan. My review is a bit bias, but I've been in this building over 100 times for various events.
The set up for basketball (both college and NBA) is top notch. The fans are right ontop of the court and the jumbotron ensures you can see all the action if you happen to miss a play. When UNLV plays at home, the T&M is the hottest ticket in town for many reasons. With the student section and band feet off the court, this place gets loud and hard for the opposition to play in. The T&M also is one of the few college venues to serve alcohol which adds fuel to the already crazy UNLV fan base.
I've also seen concerts, hockey games and been to a handful of graduations at the T&M. The set up for all those activities is comfortable and accommodating to nearly all the seats in the house.
The facility itself it well kept and has a lot of options for snacks, food and drinks. There are at least two full bars there, could be more depending on the event. It's a quick taxi ride away from the airport and the Las Vegas Strip and serves as a great venue on the campus on UNLV. Capacity for basketball is around 18,000 and about the same for most other events.