you say you're not impressed by the plastic, but have you ever even touched this gun? TM pistols are excellent quality out of the box, and are superb in their function. The plastic isn't heavy weight, but does have a decent weight to them.
If you're heavily into customizing your future 1911, TM is the way to go. if you don't care and just want something to play with, you can go with another company that makes a full metal pistol. I guarantee the TM will outperform any other make.