This machine is a workhorse. I've had no problem with function or reliability. I purchased 12-17-2021 and would buy again. My only issue was the included mouse; it malfunctioned right out of the box. I had an extra Logi so no worries. I would highly recommend this if you're crunching numbers. The output per day is astonishing to me. It can out preform two older i7 (2015) computers in total output per day.