I came from a 7250 which was total BRICK when it came to how tough it was. I don't miss mine at all compared to the 8703e. I like the fact that if I restart the 8703e, I don't have to wait 10 minutes for it to boot up. With the 7250, I could make a pot of coffee before it finished booting. I like the mp3 ringtones and the better themes on it the 8703e also.
It took me a total of 1hr to get used to the changes. By the end of 2 days it was coming out of the side holster nice and easy. The ONLY complaint that I have is the auto dimming of the screen and how it's a pain sometimes when outside to see the screen but I'm getting used to that. I hope they release a new patch to increase the vibrate because it's not as strong as the 7250 was.
All said and done, I think it's a MUCH better device then the 8830 which the store offered to give me at the same price and toss in a 2GB card for free.