Product review (4 stars): works as advertised
Seems to work just fine. I had no problems using it to remove the accumulated dog hair and dust from the coils on a refrigerator that had been in place for 10 years (without having ever been cleaned before!). It seems that the refrigerator compressor is turning on much less often now. So, I would rate to be a good buy, worth the money that it cost.
As usual it was delivered promptly and on time. Thank You Amazon! (GO Amazon Prime!!!)