I recently purchased this tool and am very pleased with the performance that it offers. Blade changes are very easy and fast due to the Milwaukee's patented chuck design (just turn the knob and pull out the blade), but be careful, if you have been cutting for a while that chuck will get very hot and it WILL burn your finger tips. I used this tool to cut through 1" diameter solid steel railings and it cut through like a hot knife through butter. This tool is far better engineered than it's competitors and the Milwaukee blades seem to hold up better also. Spend a few extra bucks on the Milwaukee and you won't regret it.