I stopped in T-Mobile and finally saw one in person. Even though I've read a bunch of reviews, I was surprised at how solid the phone really feels. I loved the screen, but I am coming from a Thunderbolt, so of course it would be a huge improvement. I tested out S-voice, and it did everything I asked it to (set an alarm, directions to a neighboring town, and check the weather). The feel of the phone was great; it didn't feel slippery as I was afraid that it might.
The only thing that I didn't like, in my brief experience with the phone, is the metallic bezel around the screen. It was the same purple color as the home button. Is this the way that it is meant to look? I think I could grow accustomed to it, but I do not much care for it now.
Overall, my visit to T-Mo made all the more excited to receive my S3 on Verizon. Here's hoping that I receive it on the 9th, as opposed to it shipping then!