Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sonicare 5500 Review

This is my second Sonicare toothbrush. I love the 4 - 30 second timers...one for each quadrant. I was disappointed that the base was not solid. The base/handle is constructed of two pieces.This is unlike my original which was a solid base/handle. There is more dripping with this 5500 type of base/handle. I was wondering what the reason is. Any suggestions?