I got my Porter Cable in September. I used it off and on but in November started using it almost daily to make gifts for Christmas. By December it was in the shop, it was squeaking and vibrating. I tried lubing it to no avail, and then it stopped working altogether. The repair man said there was a set screw tucked in the back that was missing entirely. He replaced it and it worked fine for 6 weeks. Back to the shop; I thought it was the same issue but this time it was a different screw towards the front of the saw. Both times the people at the shop weren't happy to see my saw; apparently Porter Cable is notoriously difficult to deal with warranty-wise. This past Monday (about six weeks from the last time) it started acting up again. It rattles and squeaks and vibrates, and just when I think I've got it fixed, it starts up again. This is the third strike for me. I'm not driving an hour to take it back for repairs, and I'm not dealing with it anymore, warranty or no. There is very little information online about how to fix this saw yourself, and apparently another thing Porter Cable is notorious for is not stocking parts for their tools. If something needs to be replaced there is a good chance that it won't be available. Since this is a fairly new model there are parts available online but some are already in limited quantites.
When it is working properly, it is very quiet, like a sewing machine. It was definitely a step up from the Dremel Moto-Saw I started on. For occasional use this is a fine saw but if you are planning to really get into scroll sawing I can't recommend it.
It does not come with a foot switch; there is a dust collection port. It takes both pinned and pinless blades. I always feed the blade from the bottom with it. Blade changing is easy once you get the hang of it.There is a plastic insert in the table that is not flush with the table so if you are working with small pieces of wood they can catch on the edge between the plastic and the metal table which is very annoying. Also the plastic gets chewed up by the blade very easily (especially when you are just learning how to use a scroll saw) and then you have a large ragged gap. The gauge for the table tilt was off by several degrees. The stand is nice and sturdy but it is standing height (for me anyway, I'm 5'1") or you can sit on a stool with it. I paid $199 for it and I guess I got what I paid for; I certainly used it a lot though there was a lot of downtime while it was being repaired.