Ive been using the 6630 for a little over a week now - I traded it for my 6600 as I found it toooo slow ...... I would certainly recommend it to Nokia lovers, and even first time users. The 6630 features an exceedingly smooth and intuitive user interface, as has been the tradition with Nokia. I found the search options in the Contacts very comprehensive and useful. Sound quality is exceptional. The 1.3 megapixel camera is just wow!! And yes, the speed is great, a marked improvement over the 6600. Being from the Series 60 stable, availability of applications does not seem to be a problem, either. The choice of in-built ringtones is good. The Offline mode (or Flight Mode) is a well-thought-of option. With Bluetooth & USB (through the DKU-2 cable), connectivity is a breeze. Overall, a wonderful phone at its price.
I found just one negative, though - and would appreciate ideas on how to overcome this one - I am unable to get the 6630 stand up while using the self timer option in the Camera. Ive tried to make it stand in all possible ways - no luck yet!! So how does one use the self timer?