Bought the accessorie pack along with the Multi-tool. Good selection of tools, haven't used them all yet. There did seem to be a lot of sanding type tools. Did try one whilst rubbing down window frame & wasn't that impressed, it wore down very quickly then started to wear away the velcro which holds it onto pad. However used the discs for removing grout (very quick and handy) & cutting into tiles & was very impressed. You couldn't use it as a replacement for a proper tile cutter but if you just want to trim a piece of tile it would be fine. I also used one of the blades for cutting a copper pipe which was recessed into the wall & it cut very quickly, saved me a lot of hassle. I also used the scaper on tile cement and it was like scraping butter. I can see lots of uses for the "cutting tools" but not convinced on the sanding tools.
One criticism, the box that the accesories came in is too small for the amount of accesories supplied,(there did seem a lot of sanding discs) having said that I can't see me replacing any of the sanding discs so once they are worn out there will be more room for the "proper" tools.