A belt sander is the tool I go to for scribing cabinets or countertops for a perfect fit, even with a planer to get it close the belt sander finishes it up.
The Porter Cable are junk and require to many replacement parts, which is sad because they used to make great tools. I have a small Ridgid that is OK, but not great. When I asked about a festool belt sander a couple guys reccomended the Makita, so that will be the one I go for next.