I picked up my Verizon Casio Commando last week and have been slowly but surely learning how to get around the phone. It's my first smartphone.
So far, I like it. It's nice to be able to access the web no matter where I am.
I'm not thrilled with the battery life. At the very least, I have to charge it each night. With my standard Casio Boulder, I charged it less than twice a week. I installed Juice Defender last night and we'll see if that helps.