Well... I've had a Storm since December, and I will tell you that it lagged for moths until I (a friend) upgraded it for me. Never thought about it!
Loaded the ware that came with it, and plugged my phone into my desk top. Works like a DREAM now!
I even treated myself to a wicked-cool "theme" from Crackberry to celebrate my phone working like a phone...
Also, I've dropped it about 1 million times. I have a hard case and replaceable screen protectors on it... when I remove these, the phone looks like new still! (and is much smaller)...

Now, for the Casio... my hubs got one for his personal phone, and has had it for a few years now. BELIEVE me when I say that he is hard on phones. It's outlasted 3 of his work phones... I love this thing... After replacing phone after phone, he didn't get a choice on what one he wanted... lol And again, the thing ROCKS!