A Glock is a good gun. So is the M&P, XD, XDm, SR, P99, PPQ, SP2022, P30, etc. etc. etc. There are so many good guns out there these days. Find the one that you like the best and then 1.) train with it 2.) enjoy it responsibly.
P.S. - give them all a try if you can. I know it costs money to rent, but it costs even more money trading things in. Trust me.