I bought this $115 mini ro sander to replace my 3M $189 ro sander. I loved the 3M one except it lasted 4 months! I use this tool on the daily and haven't had any issues. I do minor body work with it and the balance is great, it's light due to the composite handle and it came with a bunch of sanding discs. Good trigger control. You can speed it up and down without using the lever but it's nice to have. For being almost half price of the 3M one, it's a really great deal. One recommendation: If you plan to use it for auto body repair, run it for a while until the excess oil is done coming out of the exhaust because the first job I did spit oil onto the vehicle!