I was "in this boat" too - I have gobs of hardshell kayaks, but didn't want to subject them to thousands of miles of travel, not to mention the lack of vision they would cause, loaded over the nose of the truck....
I wanted to be able to go solo or tandem - and safety was a big concern. I agree with others - the lack of bulkheads or air bladders on the "folders" made me concerned; nor did I want the high freeboard of many inflatables, since I might be paddling open water (plus rivers). For me, the answer was the Sea Eagle Fast Track 385. Very rigid and quick to inflate, front and rear skegs; low freeboard so I could snorkel off it, if I wanted. Rated to Class II whitewater. Right now, it's packed in its bag (along with the air pump and seats) and stows between the seats on our dinette. I have to add that the carry bag is clever because it sort of wraps around the boat; lets you fold to the size and shape you need for storage. It's not one of those bags where you'll never get the item stuffed back in it once opened....LOL!!