I have their 5 gallon water can and dual Jerry can mount. The plastic nozzle for the jug was near impossible to use. A friend gave me the jug because the first time he used it, the nozzle pulled out of the can (because of the resistance) and he lost about half the water. I've talked with some other people and they never seemed to have that issue. Maybe it was just a weird manufacturing issue. I purchased the upgraded brass nozzle and that thing is amazing! Super smooth operation and leak free as well. It has threads on the outside of the nozzle tip and I've been thinking about raising the can a few inches and getting a hose attachment. That way it doesn't have to be pulled out of the cargo area every time I want to fill a water bottle. Both nozzle types fit inside the corner nook so there's no increased footprint and they don't touch the ground (assuming it's flat).
The Jerry can holder is excellent as well. The main draw for me was to replace my old carrier because the FR version has the adjustable latches. There's room to move them up and down so you get just the right amount of clamping force around the cans. There are 2 bolts you tighten to lock it into place for each latch. The two straps that rotate back have a cross strap so they move as one. Even though their water jug is a different shape compared to the traditional NATO Jerry can, one of each can be used in the mount. That was my original setup with it. But I found the water can fits perfectly in the cargo area, so the straps were adjusted to fit 2 NATO cans and I've been very happy with it.