Paul G.
Yelp
The Odyssey was designed to be a venue that covered everything from family days out to late night entertainment. While it was a novel idea, the attraction of the venue is somewhat limited. You can take the kids bowling, intrigue them with the W5 science outlet, or treat them to the latest Disney film at the cinema, but once you've done that (and you could do it all in a day), there's not much that would have the kids screaming to go back every weekend, unless they were particular fans of ice-hockey.
I don't think anyone would dispute the fact that, were it not for the alcohol licenses on the premises, the arena would've become a car-park a long time ago. There are a few bars which don't see a lot of action during the day, but which get a large enough crowd at the weekends, especially the Beach Club. There are a few restaurants there as well, from your standard Pizza Hut to Spanish and Chinese, but for me its appeal is limited. Throw in the fact that it's not that convenient to get to (or from), and I'm more inclined to head to the city-centre for my night's entertainment.
That being said, the ice-hockey is entertaining, and the Arena is renowned for its live entertainment. It hosts an array of live concerts and exhibitions, including world class performers, sporting events, Disney on Ice, etc., all of which come with a price tag that's a bit much for me.
Getting home after a night out is no picnic either, and the area gets very congested for traffic. For me, it's a place to visit on occasion when a performer or event that I'm a particular fan of is in town. For visitors who just want to check it out for themselves, there's a bus that leaves from the city hall. Your best bet, however, is to have a look around it if you're getting on one of the tour buses in Belfast, as you can get dropped off and picked up outside it, saving you any other travel costs.