I've used a huge variety of contollers but my experience at the internats totally convinced me that the CC is the most powerful, reliable out there. NiMH RC car batteries have truly huge capacities now (5000+ mah). Two 7.2v batteries in this controller give you all the power you can possibly need. Great for both large clusters and composite igniters.
I've made some modifications to my Command Contoller to make it more convenient and hardier.
1st, I permanently attached the safety key with a piece of thick kevlar (I got tired of losing them). Simple hole through the case, knot on the inside end. I then superglued the little cover in place because I never put igniters in there and I was tired of it popping off.
Second, I bought a nice elastic/velcro band to hold the cables on the yellow holder. Perfect size and cheap on Amazon (Zeltauto elastic hook and loop cable..).
Third, I've tried several chargers and the one shown is by far the best. Fast, and the green "You're Done" light actually works. I modified a male Tamiya connector to use a 10X 2.5mm/5.5mm male DC power plug so I don't have to take the batteries out each time to charge them. One of the great things about the Command Controller is that it includes two charging ports on the back that allow you to do what I did. You just need the propper DC power plugs.
Final thing I did was to buy a Seahorse SE300 Waterproof Case from Fuerte Cases. I actually had a Command Controller case crack coming back from WSMC. The Seahorse case in the photos was cheap but shipping expensive. But I really like that I now have a very transportable unbreakable case for the controller and charger.
Hope these modifications help some of you.
Steve