The one my friend was using had bits of the plastic bottom chipped off. From what you describe I am going to assume he threw it off a fucking mountain or something, so maybe it's not as fragile as I thought. It just felt...thin in my hands. He swears by it. As for bulk with pots, here is my two person setup packed and unpacked.
I can make it even smaller and lighter with just the stove and a single camp cup. Only issue I have is that I have to use the smaller ISO cans but if I'm only cooking for myself or two it hasn't been an issue yet. I also have a much larger set of pots, plates etc for being fancy when not in the backcountry.
Maybe I'm just a snob about the way the Jetboil looks. It seems so...
Flash...
You sound like a perfect candidate for
The One. It's not ideal for going ultralight or for long through hikes, but it is an incredibly solid bag for multi-temp environments. It's 4lbs and change so it's heavy and it doesn't compress down super small but you basically get two full bags plus a camp blanket that all together range from 40/20/5 temps. I've only used it once in temps around 5/0 and I still had to layer up a bit to be cozy but that's the case with any bag in that temp. It has a TON of zippers and can be a bit confusing to figure out how to quickly assemble it all so I don't recommend it for trips where you want to get your camp up and going fast.
if you need something a little different, I cannot recommend the REI Magma bags highly enough. I have both the 10 and the 30 and they are both awesome. They compress down to about the size of two fists, are very light and decently comfortable. I will say the Magma 10 isn't QUITE accurate because at temps around 15-10 I was pretty chilly without layering up, but it's just so goddamn light and tiny I still use it.
I just looked and it seems REI changed the 10 model and now only does a 15. I haven't used that one but it looks like the 10 is no longer available. Bummer.
I would suggest you check out The One though. Sounds almost purpose built for you.
I've never done the RV rental thing but a few of my ski buddies do it once every few years around the Rockies and love it.