Like Graybeard, I've owned more Dremels than I can remember. But then I'm a bit old and it's hard to think back that far. Today I have four units and wouldn't be without them. One is in the Workstation (drill press), another has the flex and handpiece and the others I use free hand for whatever. I do a lot of drilling, sanding and cutting with them. I have the router bits, but haven't used them.
I think you'd like it, and find many uses if you buy one.. But if you go for "cheap", you'll hate it.