Instruct: Classify Amazon reviews into positive or negative sentiment
Query: NOT RELIABLE - DO NOT BUY!!!

I've had the Treo 650 for four days and I've missed over 50% of my incomming phone calls. Why? Because it reboots at random times all day.... it shuts off at random times all day... and it doesn't reboot with the phone enabled.Excellent.Add to that- The email linking is inconsistant - even with simple POP email accounts - The treo fails to connect over 50% of the time. What's the point???So I did some research. I grabbed the 1.08 OS patch from PALM... too bad it didn't fix anything.I'm returning the phone. It's the most expensive call blocker I've ever purchased. I've missed emergency phone calls becuase of it's flakey OS!!!This thing may look good on paper, but it doesn't actually function in person.Speaker phone is useless... Call Volume problems.... Buggy operation:BUYER BEWARE.-M