I have a Aquatica 5d iii housing (which by luck fits perfectly the 5DS & 5DS R)
The good :
I have lots of spares - O-rings, button tips, clips and latches
Includes backscatter vacuum system
Includes optional ISO lever
Replaced both Kikons bulkheads and strobe electronics
Never flooded
The Bad :
Light surface scratches on the housing (not on the port)
I also have----
18463 extension for the Canon 8-15 Fisheye with Aquatica lock (same as 48463) - $125
18426 macro port with great glass and neoprene cover. $150
18453 extension ring - $75
Reefnet subsea adapter for macro port above - $50