Instruct: Classify Amazon reviews into positive or negative sentiment
Query: good when its working, but won't last a year

I initially purchased the Scunci steamer that is virtually identical to the Shark steamer. It was under warranty for 1 year and in that year I believe I had it replaced at least twice. After the last one broke and it was no longer under warranty I purchased the Shark steamer, it also broke after 1 year and I am now on my 3rd steamer that just broke and it is about a year old. You are probably now wondering why I would keep purchasing a product that is so obviously laking in quality control. The answer is that when it is working it is great and I find that I can't live without it. For cleaning my car and furniture it is indispensible, it does a great job sanitizing bathrooms. I am now in the market for another steamer though and this time I am researching other brands. I don't think I will buy another Shark product.