The only complaint - but it's a big one - is that 2 of the 4 handsets on my system had their LCD caller ID screens go blank. When it first occurred, I contacted tech support and was told to pull out the handset batteries, push every single button on the handset, then reinstall the batteries. That worked most of the time but it was just a matter of time before the screens went blank again. This is obviously a huge problem for trying to look up stored numbers in the handset phonebook, seeing who's calling in before picking up and even to see whether or not the handset is on or off! Oddly enough, each of the 2 handsets that 'misbehave' occasionally enjoy full function of the LCD screen. Not for long, though (a few days maybe). Luckily for me, the location of the 2 handsets made it not all that critical to have to be operate the phone 'blind' and the 2 handsets that have always worked well are dependable and have great features, which is why I give this model a decently high rating.