I agree. The value isn't there, if I read the specs correctly.
The "generator " part is the 100 watt solar panel. The battery is simply storage, with ourlets. Though it does claim some pretty high peak power, it's not going to run your ac for long, if at all. And, I'd be skeptical about being able to recharge daily with only a single 100 watt panel.
I looked at the Goal Zero Yeti last year, when it was on sale at Costco online. Nice, but still pricey, and if I were personally going to spend another $1000 to $2500 on powering my trailer, I'd seriously be looking at swapping my agms for battleborns, and beef up my portable solar capacity.
I guess the real question is, what do you want to accomplish with auxiliary power/generator? Just recharge batteries? Run your ac? Have reserve power for electronics?
Edit to add: having something around like a goal zero yeti or jackery can useful at home in power failures, too, to run essential systems, for a short while. If that's part of your goal.
Sherry