Used one for a time before I got my Sharpertek. Didn't work too bad, a little slow, could use more power. have to reset the timer several times before the carb will be clean enough. My sharpertek is 180 watts and sometimes I wish it had more power. I think the HF one is 60 watts for the larger one, with 100 watts heating. My Sharpertek is 180 watts cleaning and 600 watts heating.