I am using the 8700r, having previously used various other Rogers Blackberries including the 7290. I love the 8700r and would not go back.
There are nonetheless issues:
1. The screen on the 8700 scratches very easily. Consider ordering Screen Patronus screen protectors today and you will have them in a few days. Ideally you will install them from day one. (I suggest ordering at least 2 sets, i.e. at least 6 protectors. The postage is proportionately too high on one set and it doesn't leave you much in reserve if you screw up an installation like I did. More info here
2. The OEM holster, unaffectionately known as the Launcher, is dangerous. My experience here
. A good product to consider (since the 8700 is frankly fragile by comparison with the older Blackberries) is the Seidio Swivel Clip Holster discussed here
. Fortte also make some very nice cases. Check out the BBF Reviews forum.
None of this should scare you away. The 8700r has a colour screen and electronics that are simply wonderful. But treat it with respect; it is not indestructible.