The shrimp is dirt simple to overhaul. I bought mine used and not even being much of a reg person I did it myself in about 40mins (the first time ever). The second stage and the BOV knob - its really just a ball valve - are separate. All you really need is a blunt dental pick to remove the spiders and some allen wrenches. I don't find mine heavy but I also use it was a gag strap.
I am not a fan of all in one type stuff (eg BOV and MAVs combined) when a reg or a hose fails it ends up taking out multiple devices. So even if you go with the divesoft I would split the BOV from the MAVs - but that's just me.
Agree with that. I don’t see the positive of integrated mavs. Its just asking for issues and I dont see hitting a button on my face qs easier as my chest mounted mavs