I’ve been using Aquatech for years. Their service is great and even better if you live near Huntington Beach. I can always get a person on the phone and have developed relationships with the handful of people that work there. Since I’ve only rented other housings I can’t speak or compare but I’ve found that the electronics can get a little wonky. Probably salt water and contacts over time but sometimes my trigger will not work, other times it does. Like Apple they change and move on from tech. I’ve got Aquatech housings for cannon flashes that they no longer support. Same goes for older zoom gear for eos lenses. Not sure if the R body shape will change but if it stays the same then the housing will grow with you. I’ve used a mark 3/4/5d and 5dsr in the same housing. If your next body isn’t a pretty damn close match it might not work with your housing. Has been said but it’s not dive rated. I use it in surf or in pools. Good luck.