SM CCR is great at actually cave diving. Everything else its terrible.
Tilt head up? Flood the cells with goobers,
float on the surface? can't breath,
zero water trap,
no place to put a 2nd deco gas,
its a bitch to have a stable suit gas spot,
suit heater pushes your SM tank out into an A frame
forget boat diving off a small boat
And you still have a bunch of crap on your chest like the O2 and dil Mavs
0/10 do not recommend unless you actually need a cave diving SM unit.
@girlwithbigtanks may have a different perspective but I doubt it - we both dive sidewinders locally