I just activated my 3rd PM-325. The first two, after a couple months of use, had the power issues reported by many other reviewers. My first one would normally power off during long calls when the phone would heat up from use. I actually resorted to holding the phone on a bag of ice while on long calls. I took this phone to a Sprint store, they tested it and said it didn't pass and replaced it with a refurbished phone under LG's warranty.My second PM-325 started the same behaviour after 3 - 4 months of use. The rebooting seemed much more random and much more severe. It would actually hang in a half on, half off state where the green light would stay lit and nothing else would happen. Removing the battery and attempting to power it back on would put it back in that state. I again went to a Sprint store where it was tested as being bad. After multiple calls to the Sprint helpdesk they replaced it under the seldom mentioned Care Advance Exchange program which is available to those with business accounts. Sprint shipped me a brand new phone this time, but I have no confidence that this phone will not do the same thing in the next couple months.If you still buy this phone because it's the only Sprint phone with Bluetooth, opt for the hardware replacement program so you can switch to a new phone when you realize that bluetooth isn't worth the irritation of replacing the phone every 3 - 5 months.