Seems much better to me except for one thing. I'm not sure if this is just my TP, but getting a response from tapping the two top corners is a pain in the ***. I mean sometimes I have to literally mash it so hard I think I might break the screen. My Diamond didn't have this issue. so i might have to take it back. Also, the SIP on the diamond is larger than that of the TP. see here
Other than that, i'd say it is better than the Diamond for those who like the extra features of the TP, other than that they're about equal.