Well, keep in mind that on the internet you typically only here from those who are upset. That said, there have been some bugs with the SGX that were quickly corrected in an April 20th update (and another one before that) and they came out yesterday and said they'd have another major update by Wednesday night (
click here
for details about 1.0.11).
The uPro is a nice piece. Personally, I chose the SGX and have had zero problems so far. I'll admit there are some that have had many issues, but like I said, people who are upset tend to vent their frustration on the internet more than those who are happy.
So, in the end, it's up to you. Head to the store and see which one you like. Visit
www.skygolf.com
and browse the details about the SGX and course capabilities and see if it's the one for you. Also, don't forget the SmartClub technology that will be coming out this summer. That alone should set the SGX apart from everything else out there.
Good luck with whichever decision you make.