I remember when the ink barely had dried on my PPL, I got this great idea to transition to a Piper Lancer for some reason. It was retractable, c/s prop and high power and I was hot on all that. Man, I was so far behind that plane I was still on the ground when it arrived at the new airport. I can't believe instructor let me solo it even. I was sweating mu n**s off and couldn't enjoy a minute!
That said, I still recommend trying a complex or high performance aircraft sooner rather than later - it's good practice and will tell you a lot about workload.
