Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Updated reivew.

They all use a rubber drive coupling and if you use it hard it will break. I have 3 of these. Don't get me wrong I like them. The oldest is retired because it is over 30 and looks like hell. I use it for parts. The two I have now are this one and a cheaper one. They all have this rubber part. The newer ones have a poor design in the jar base screw. It's plastic and it breaks easy. I've been through 3 plus in 6 years. I did not buy mine here I got one At JC Penny on sale and one at Wallyworld.Update to my review. This is not a heavy duty blender. There is a rubber part in the "ALL Metal Drive" that will fail. The replacement parts are not as good as a new one most have dry rot and break quickly. I've got 3 and when I fix them I'm selling them and getting either a Warn Or Vitamix.