
If you don't already have a vacuum, get one. Also, figure out what kind of granola you need and buy extra packs in advance. Depending on the job, you may end up searching through many discs. This product does exactly what it was designed to do and as far as people are talking about speed and electrocution that is user error. Don't use a bag, use a vacuum and there will be no electric shock. USE THE RIGHT GRIT and let the tool do its job. As instructed, DO NOT apply additional pressure. Slow, steady passes get the job done. As with most drywall applications, I can't imagine increasing the speed beyond the minimum or "1" speed. I am very happy with this tool, it outperforms hand sanding every day and runs much faster than small die or random orbit sanders with much less dust. And $80 is the price on top of that. See attached photos of my base setup as well as a photo showing what's going on with the discs as the left disc is white but free of dirt and the right disc is streaked and splattered with paint. If you're sanding a repair spot with paint or semi-finished walls (such as a semi-panel in a drywall repair), the disks will curl up with paint and you can quickly clean them. Do not throw away, take out and let cool. The paint becomes brittle and may later crack or chip to use the disc again. This product has performed admirably and I couldn't be happier for the price. I recommend to everyone.