I had an opportunity to use the new sander over the weekend. It works great!
I tried it with just the dust canister attached and it did a good job collecting the dust. Very little dust was left on the piece being sanded. I attached the shop vac to the dust port and that worked even better (duh). There was practically nothing left on the piece. When I wiped it with a glove, only some very fine powder remained.
It took a little getting used to. The body of the sander is quite a bit wider than the PC 333VS. I had to figure out the best way to hold it to control where it was going. When I first started, it tended to wander. I found that just resting one hand on top and holding the dust port area with the other hand worked pretty well. After a while I was able to control it quite well with just one hand sitting on top.
With the PC 333VS it seemed like I had to press down on the sander to get it to work well. With this sander just the weight of the machine seems to be plenty.
The pad on the new sander is a little larger and supports the sanding discs almost to the edge. The paper overhangs the pad by ~ 1/8".
I used the sander to remove the finish on some pre-finished cherry plywood. I started with 60 grit to remove most of the finish, moved to 120 grit to get the entire surface down to bare wood, and finished up with 180 grit to smooth out the surface. I was able to get all of the finish off without sanding through the micro-veneer on the ply. The sander was controllable enough to get right to the edges and corners without sanding through. I think the low profile design helps in keeping the pad flat on the surface with no tipping.
One other thing I noticed, with the shop vac attached to the dust port and the sander turned off, the suction through the machine was enough to lift small boards (~ 12" x 12") off of the bench.
I used the sander for a over an hour and no tingling fingers when I was finished. At least no more than I had before I started.