I've had the Atrix for about 5 months, here are my pros and cons:

PROS:
Vey fast phone
Neat fingerprint scanner unlock
Gingerbread release came fairly soon after release
Screen is sharp
Battery life is better than i experienced with the EVO, and comparable to iPhone 4.

CONS:
MotoBlur is less than great. Some neat concepts, with half hearted implementation.
Screen quality is poor. Text is sharp, but the pentile display design combined with crappy bit depth make for a poor photo viewing experience.
While this is a very fast dual core device, a flagship upon release, Motorola is not currently planning an ICS upgrade. Very poor decision if that holds true.
Camera is OK at best.