Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ok performance until glass lid shattered

I'm not a big review-leaver...usually I just move along after receiving a product, but I feel compelled to leave one for this slow cooker. We've had it for a few years but only recently (since having a kid), have we started to use it with anything approaching regularity. It's always been pretty trusty, if a bit on the hot side, but there are worse problems to have in a cooking device. I was looking forward to my slow-cooker tomato sauce tonight and was just walking into the kitchen when I heard a fairly loud "pop!" It turns out the lid had shattered and glass fallen into the sauce. I can't be too upset since it's past warranty and I'd like a programmable and larger model, but buyer beware!