Summary: I owned the previous model system (2400) for nearly 4 years. After two - three years the phones started to have problems and I upgraded to the latest model. The handsets on the 8800 seem much more durable but the cradles are missing a spare battery charger that were present in the earlier models. It's not a perfect system but the your choices are limited on 2-line cordless systems. All in all I'm content with the system.
Pros: no mute on handsets, lots of features means somewhat complicated user interface
Cons: no mute on handsets, lots of features means somewhat complicated user interface