If you want a lightweight and small rotary, the FLEX is perfect. The downside is the thing has no balls. You can freespin it to a rated 3700 rpms, not that you'll need that much speed, but you put a little pressure on it to correct some scratches, and it bogs down to nothing. I also don't like the fat handle, and slow start feature. I'll keep saying it, but the DeWalt is still the best rotary on the market. No slow start button, more power than you'll ever need, the most reliable buffer I've ever owned, and the best adjustable speed trigger on the market. Just my .02