I've been running two free weekly trips around Belli in a customised version of that very same trolley for almost a year now (current timetable as of January 2023 attached, will be the same in February, not sure about March - check the BBB for an updated version). I've found it to be a pretty stable vehicle, with one or two problems, the biggest one being seating - it could definitely use some seatbelts to avoid Residents sitting in each others' laps. It also has trouble with a couple of corners in the newer log regions, most notably just after Gully Wash (heading southwest). But slowly slowly, we get there.