Instruct: Classify a given review as either positive or negative.
Query: Good but short lived

My wife and I bought two Oster 2609 hand blenders for making shakes as part of a diet program. Initially they worked great. The bottom can be removed and rinsed but deep cleaning is difficult. The blender has the tendancy to go into hydraulic oscillation and make a mess. The tabs on one motor broke after ~6 months so the blender base will not stay on, meaning blending is a two handed job. The bearings in the base are getting tight and I don't think will last much longer. I am disappointed.