I had a 2000 Zanzi single slide for 4 yrs and 55k miles. The problems were few that couldn't be easily fixed after the ones that required factory warranty service we done. For a 38' coach they were built light, aluminum everywhere including the sidewall skins. The slide is a flush arrangement that had a habit of flexing around when closed and popping the pop rivets around the edges. The biggest problem to me was the overheating with the 3126b cat engine. It was a rear radiator configuration. They did a retrofit on it called a "heat kit" that amounted to a fan shroud, a 9 blade fan, an additional louver in the bumper, reconfigured louvers in the doors and a fan pulley sized to increase the fan speed. That did the trick, kinda, after that it never derated again but the heat gauge climbed steadily on grades. Patience and discipline in climbing grades is necessary with this configuration. On newer years they put larger radiators in them and that seems to have fixed the problem. The interior and cabinet work was first rate. After 4 years of the Safari ad test driving our 04 Imperial the Roadmaster chassis is better that the Magnum by a far piece but there is a real price difference too.
2004 HR Imperial