Ive always had NOKIA phones, and i have nothing bad to say about them. Currently i have a 7650, sweet phone with a weird design. Bough the 6610 for my mom, now thats more of a PDA than a phone really.
I hate the default ringtone with a fiery vermillion passion, but the phone itself works fine - haven't had any problems with it for the four months I've had it, and it's been banged around quite a bit in my purse.