I chose the brand and power. I have brand power and more competitive prices. For me, the grinder is too heavy to be held with one hand. But in many cases, access to the room is difficult. One can not help but build on it with the other hand to block its position and especially to keep a saving balance. In a better world, the designer would have the baby tested "in situ" before starting. Sorry but that in situ is not established .. Too bad! because its size is perfect. So it's a small efficient and enjoyable tool to use in the workshop, I was wrong. The tool is not sufficiently universal to use I do.