Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this thing is great....when it works

If it always worked like it was supposed to it would be awsome.Mine drops calls when It shows I have full reception.My calls break up and I have to hang up and call back before it will work.Sometimes when I try to unlock the keys to use the phone, The screen will go blank and the phone will not respond for about 15-20 seconds.Way to many little gimick features that just clutter up the user menu.My wifes is way worse than mine but she got water on hers so I won't complain about it.