The U is pretty legit, specifically the engineering programs.
The freshmen scene was by far the best, just not a lot of fucks given. Lots of house Parties, I wouldn't go greek, unless you like butt plugs.
Dorms are a must freshmen year, meet as many people as you can. The skiers all know the skiers, and hate on the frats... pretty much every year. Get in tight with the ski community, and I think you will really enjoy your time in Utah.