I have a Nokia BH-800 bluetooth headset and a Discovery 640. They both sound horrible on my 8703. Range is short and the volume way too low. When I connect them to a Q or a Treo 700w...they sound much better (clearer and with great volume)...and the range is vastly improved.
I am new to the BB...this is my first one. I have always had Treos...the last being a 700w. As far as email and texting...the BB is the machine. As far as phone capabilities and PDA interface and functionality...it seems a bit archaic.