I don't have direct experience with Prowler 20 rbs model. My first TT was double axle '93 19ft Prowler and we loved it. It was built solid, no window leaks and it was solid built. Only maintenance / mod was removing its axles, wire brush/rust paint them, install new bushings and re-install under its leaf springs - to create more ground clearance and install new 10 gauge brake wiring in a STAR design. Other then this, it was a great trailer. I'd buy it again (now that our family size is now much smaller).