Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy this hunk of trash!

I owned this piece of junk for about 2 years and only used it for light jobs maybe 5-10 times a year at most. The black knob on the handle that tightens the blade is a joke because it pops off all the time and is poorly designed. Recently the trigger only intermittently worked and the variable speed feature stopped working which made cutting metal a nightmare. I've been a long time user of Bosch tools and I expected much more from them. To be fair I've never had a problem with any of my other Bosch tools. Maybe I should have paid for the higher end model. Quite disappointing given how little I used this Jigsaw. Finally got so fed up I tossed this hunk of junk in the dumpster.