pto is nicer to use, gets instant heat in the morning, less weight and takes up less space, and less maintenance. But it barely costs lower than a slide-in, and when it does break, it gets really expensive. Here's a pic of cleanco compact 47(direct driven by a chevy express 2500) repair that a friend of mine had a while ago. 2.6k cad/2.1k usd for pto shaft and some belts, yikes! Mind you its performance is only on par with apex 570 31hp (so not a true dual wand), and uses 1.5gph on fuel so aint more fuel efficient than a slide in. I believe there are very good reasons why cleanco moved onto slide-in slx 47 than making a new pto for ford transit.