I hated pulling the trigger on the Dyson V7 while vacuuming because my finger usually hurts a bit after vacuuming. When I saw that, I thought it was a brilliant idea. It's easy to install and use, but there are some downsides. 1) when I push the gold lever all the way down it has to be in the perfect position or else the vacuum won't stop 2) there is no place to rest all 4 fingers (I have average women's hands) 3) the switch gets in the way when I put my index finger in any position. An extra star for a good concept. I had high hopes for it. I flipped the switch and went back to using my vacuum the old fashioned way because it was just awkward to use with the built in automatic switch.
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