I've done a lot of reading here as I plan my sim set up. I've come to choosing either of the following:

ProTee Sim:
Pros:
-easy for lefties and righties
-cost effective
-good club feed back
-easy to use
Cons:
-no accurate spin rates
-can't take it to the course
-only one mat

GC2 with ProTee software:
Pros:
-accurate ball data, spin ect
-can take it to the course to practice
-use any mat
Cons:
-pain to switch left to right. Rep actually suggested buying two units.

I'm curious the opinion of others here.

Thanks