I was an airport bum, working line service, doing odd jobs, etc in exchange for flying when I was a kid. Because of my status as "bum", I kind of had to fly what was available at the time, so I was signed off for solo prior to my license in:
1) Cessna 140, 150, 172
2) PA-28-161, PA-28-140
3) Socata TB-10
I also got to log time while a student on trips in a Commander 112 and Mooney's. The day I got my private I flew a Mooney "F" from KDWH to Kerville to pick up some things for a newer Mooney we had - in fact, it was my first flight as a Private Pilot. I have absolutely no qualms about a Mooney and am a big fan. I love the steel-tube roll cage around the cabin area, I like how they fly, I like how efficient they are, etc. I think they can easily be handled by a low time pilot with no problems (I am proof). All in all, for an airplane that is made out of aluminum and not fabric covered, has a nosewheel and a flat engine - Mooney's are ok.