I had to look up Sonicrafter, looks like a typical multitool, such as Fein, Ridgid, Porter Cable, Bosch, etc. make. I love the cordless Ridgid I bought not too long ago. A carbide blade makes short work of removing floor grout around a tile that needs to be removed, way better than an 11,000 RPM grinder w/ diamond blade spewing clouds of dust throughout the client's house. The wood/metal blade does great to cut baseboard off the wall to replace a section, or cut toilet bolts down to size so the caps fit. I used it to make precise cutouts in a drywall project too. Pretty damn happy with the thing, really. Only thing I'm pissed about is that Porter Cable came out with a toolless version (they always do).
I've got 2 PVC air hoses I bought in '92, they won't die. I treat them nice, never running them over and I put electrical tape strain reliefs on the ends. Every time I use them in cold weather I want to shoot myself, but like BFG AT's, they last forever.