Instruct: Classify Amazon reviews into positive or negative sentiment
Query: OK, but doesn't last

My first WaterPik was purchased in the 1970s and lasted almost 30 years before the pump finally gave out. It was the family model and came with four plastic jet tips that also lasted 30 years.A friend bought me this model as a replacement, and right away I noticed a couple of things I didn't like: first, there was only one jet tip plus a tongue cleaner (which I have yet to use), and second, there isn't enough room in the base to wind the cord properly. The second point annoys me every time I use the unit, as it won't sit flat when the cord is wound up.I haven't used my new WaterPik very much--no more than 50 times--and the last time I tried to detach the jet tip from the hose, it broke off at the end. Now my Pik is useless, and currently Amazon does not carry replacement tips. So with shipping from an outside vendor, I'll end up having to pay approximately half the price of the entire unit just to get replacement tips.