At work we have a Miller Spectrum 2050. I use it a lot when I'm fabbing stuff. I've gotten used to grabbing a 1" angle iron to use as a straight edge and various rounds or tubing for doing circular stuff. I've noticed that on the thicker metals it is better to go slower to get less side blow. On the thinner stuff, 1/8" - 1/4", it works wonders. Nice thing is that you control the burn. I've been cutting a lot of booms lately for scrapping. Since the metal is thicker, I use a 4' torch. When the rosebud starts getting dirty, you have to deal with flame blowout, starting and stopping your cut, etc.
The plasma does leave a little extra blow-off on your cut pieces, nothing a little strike from a welding hammer or hit with a sharp piece of metal or screwdriver won't knock off. Otherwise, you're right. It is a pretty clean cut with little work to look smooth.
Years ago I Camaro clipped a '49. The fish plates I cut with a cutting wheel, etc. Took me a long weekend or more to do. A couple of years ago, I Camaro clipped my '52 Suburban. Took a lot less time and was more accurate making the fish plates with the plasma.
