I couldn’t say if the individual Victron components are any better or worse than any other equipment. It certainly seems top notch and of course it’s highly regarded in the marine world.
To me, the Victron advantage is in the networking among the different components. Victron seems to be the only company that concentrates on the electrical system as a whole. So their solar charge controllers and chargers are much more powerful together than independently, and the more components you add, the more powerful they become.
To see a real benefit from Victron gear, should you go that route, I’d say that in addition to the charge controller you should go ahead and get their battery monitor and color control display, like you have on your boat. Fortunately, neither of those are too expensive, nor difficult to install, especially for you guys. As you know, those components together will give you all of the monitoring and remote capabilities of their network. After you’ve installed that, then I can talk you into getting a MultiPlus. 😛
The other thing I’d add is that ultimately I’d like to have a separate charge controller dedicated to portable panels. I’d wire the portables as 24 volts so that I could use longer and smaller cables. So that might be something to consider yourself.