Instruct: Classify the given review into positive or negative sentiment.
Query: Not what you expect

I had an old Barranca polisher- with single speed. I learned that to polish granite / marble variable speed had advantages. I decided to buy the MK polisher due to the reputation of MK. Barranca parts were hard to get. I had my first problem and called to order the speed control that failed- it prbably had 10-20 hours of polishing use. I was told that part is not available. I need to send the entire unit back to CA for them to try to fix it. I live in CT- and to ship the enire thing back is probably $25, then the fix, and another $25 to get it back.I should have bought a Flex-MK has made huge margins in importing Chinese products and don't think that parts need to be supplied. The consumer has a choice.