Well as far as working on them, I found that being able to pull out the play field buy unplugging a few connectors and being able to put it on my coffee table was nice. Also most of the mechs had molex connectors and were easy to take out of the play field to clean. Then again SWEP1 was the first machine I bought and worked on. Still have it but I enjoy RFM as well (if not a bit more).

But definitely heavy as hell!!