Several of the assembly bosses were broken. I glued them back together, sort of, It has had some other operational issues of late such as wandering off, slightly. I am trying to decide if I can upgrade what I have or just buy a later model. I can probably afford it but hate to just scrap what I have. Assuming it is not just scrap to begin with. Please give me some personal reflections, experiences and advise. The Go Pro 4 camera is ok but this unit is beginning to look a bit shabby; not that that matters much while its up in the air.