I just finished up remodeling my kitchen and used paperstone for the counters. We used the gunmetal color. It is actually made with recycled office paper, so when sanded it takes on a mottled appearance, somewhere between cast concrete and soapstone. I ordered an old sheet that they refaced (saved ~$500 on a 5'x10' sheet). Be fore warned, it is very heavy. My local lumber baron was gracious enough to allow me to have it delivered to his yard. The only tools needed were the TS75 (with the stock blade) and the ETS150/3. After lots of sanding (my 5yr old daughter thought it was great when she got to sand down the counter using the ETS. Wonderfully balanced unit...) and a few coats of finish, it is beautiful.
Cycle forward a few months.... It is soft and will scratch fairly easily. We made the mistake (only once) of putting a paper grocery bag on it and sliding it. Tiny little scratches. It wouldn't take much to sand/buff them out, but our kids are still young and that's the least of my worries. That said, I would not use a different product. When we prep it (polish it with a beeswax solution) for guests, everyone is in love with it. It has a great look and feel that I have not found in other products.
**disclaimer - I have 15 years experience as a builder, have formal training in cabinetmaking and a BS in architecture. I have been known to be a little picky when it comes to materials
Sorry I can't really answer your question about the blade or the saw. I own both saws and use each of them for the tasks that they are best suited for. Worst case is you would need a new blade and have to have the old one sharpened
Dan