Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Wonderful and Fast!!

We had this warmer for our second baby and wish I had purchased it for our first born also. This warmer is easy to use and warms up the bottles pretty quickly for that crying baby who can't wait for that milk. It does take a few tries to get used to how much water to use in the warmer for the perfect temp. We had some overheat and underheat until we figured it out. It is very compact which makes it great for travel. We bought it everywhere with us; friends, famliy, vacation etc.Ok now what I don't like is that I used vinegar to clean it out often, but it still has build up on the bottom. Maybe it is just the kind of water we have here. Good recommendation...put it on your registry!!