Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't charge reliably

Mostly a great headset, but it is very tempermental to get seated properly (i.e., to get it to charge). I have long known that I need to watch the blinking light to be sure it is charging. However, lately it has been getting worse -- it will blink a couple of times but then stop charging (I think the little plastic spring that holds it in the cradle actually pushes it off the contacts unless you get it seated just right). I now watch it for a while and monitor it to be sure it continues to charge. I just took another conference call on the handset because it didn't recharge after this morning's call so I am a little steamed. I might have given it 3 stars if I was writing a review out of boredom (it is comfortable, has good range and the sonic quality is pretty good), but I don't enjoy having to pay attention to a cordless headset.