Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy if you love throwing away your $$$

I too got this pressure washer through a hotel rewards program. When the unit arrived, I assembled it and tested it out. To my dismay the pump was surging and would not deliver solid pressure. I tried different water taps and verified the tips were clean. After taking the washer to a dealer, I had to wait 5 months to get a new pump in. During that time Karcher would not honor my warranty because I did not have a sales receipt. After I explained I got this through an awards clearing house and had the original shipping slip, they would still not honor my warranty claim.So, the point is:1. Washer was broken out of the box.2. Karcher tech support sucks (online only)3. Ordering parts is a nightmare (most retailers listed on Karcher's web site have dropped the Karcher line all together)4. Abysmal customer serviceHopefully now I can find a Sears pressure washer that uses the same engine!