I was a little worried when I read that the Black and Decker quiet blender with Cyclone glass jar had a glass jar. My family is accident prone, so I usually avoid anything glass. I decided to try it anyways, and I am glad that I did. The glass is very thick and seems like it would be very hard to break. The blender works great.  I love the preset buttons. The shake button works great to blend everything together without having to mess with it a lot (most blenders you have to switch the speeds and sometimes push the ingredients down to get everything blended, but this one switches speeds automatically and seems to pull everything down good. It was still a little noisy, but much quieter than my old blender. Overall, it works great and I would definitely recommend it.