from treo 680 to iPhone – is it worth it?

I am a rather disgruntled Treo 680 user. I’ve been using my treo for about a year. Even after a hard reset (have done about four already) my phone reboots about 1 out of 5 calls.

So I’m thinking of migrating to an iPhone. Has anyone here migrated from a Treo to an iPhone? If so, what was your experience? is it worth it?

thanks so much.