We have a Mini-Max and absolutely love it. We've been R2ing it this summer, and took it on a 7 day San Juan trip. We take the whole family in it (R2+ I guess LOL) paddling. It's been great for low water and small creeks (Boulder Creek with the kids for example). It's a blast on bigger stuff like Westwater too.
In terms of rowing, I built my own frame (it's buried in the raft porn thread somewhere) and I use a 24" captains box as the dry box (and seat) and then a cooler in the other bay. I can get a couple of water jugs and a couple of dry bags in it too. Depending on what all gear you want to take, I think you can make a mini work for multi-day trips, especially in a group where you don't have to bring absolutely everything yourself. I am confident that I could do an overnight or even a few days in the mini on our own if we wanted too though. Firepan would probably be the hardest thing to stow.
In terms of the boat itself, it is lightweight for sure. It's one of the things I really love about it. My wife isn't all that big or strong, and my kids are still fairly young, so having a boat that even my son and I can carry is huge for me (and I have a bad back to top it off LOL). Even with the small frame if we row, it's easy to load and unload from a trailer. Take the frame off and paddle it, and it is a no-brainer. We carried the thing several hundred yards down Boulder Creek bike path no problem.
Maneuverability is awesome. It's very responsive, and very easy to get it where you want it to go. I prefer to paddle my Mini over running my 14 footer now, I only take the 14 footer on extended multi-days. And I really like my 14 footer.
I obviously don't have the Puma or any of the others mentioned, but you asked about the Mini-Max, and I can honestly say I'd by another one without blinking an eye. Every day of the week....