I just spent a couple of days helping finish out a cabin screened in porch. A couple of weeks ago, I helped using only my bro-in-laws basic tools - B&D circular saw, cordless drill, old, old jig saw, etc. This past Monday and Tuesday I went back to help with my MFT800, TS55 and a few guide rails. We were SO much more productive it was amazing. Instead of using a 2x4 as a saw guide, measuring the distance from the edge of the saw to the saw kerf and hoping the 2x was truly straight, we used my TS55 and the guide rails. No measuring, dead-on straight cuts, very little or no chip outs - way quicker and more accurate. My bro-in-law was blown away. It really made it fun to work seeing how much better the siding, ceiling and trim went up.
Now I'll fess up. I purchased my TS55 used and that was the first project I used it on. Easy, straight forward techniques. I'm used to using my Delta Unisaw and a Porter Cable Saw Boss. I'm excited to see what other projects can be done with the Festool system.