I sold the trailer in my signature. At 26' I would not want a longer trailer and a shorter one would be better. The 26' was too long for many of the campsites we used to love. Although the Captiva had plenty of room for the 4 of us it was definitely too narrow. It was hard to sit all together inside as a group. And just walking past each other with a plate of food was very cramped. For this reason my recommendation for a trailer is to go shorter with a slide out. Other things we hated was the tiny bathroom. There was not enough room when sitting on the toilet and taking a shower in the cramped shower was near impossible.
My next RV will either be a toy hauler or a truck camper with a slide. When shopping for the Captiva we didn't come across any trailers with a built in generator. The 30 gallon fresh water tank was way too small for a weekend with 4 people. The only motorized toy I have is my Honda mower and it isn't fun enough to bring it along with us. But we do have bicycles, kayaks and paddle boards that we like to bring along with us. Even the short toy haulers have generators and fresh water tanks in the 100 gallon range. The dual slide down queen beds in the rear of many toy haulers would be perfect for the kids. I like the idea of the dual use space for hauling stuff and sleeping!
With the 26' Captiva we had plenty of room but were still cramped because of the width. If we are going to be cramped we might as well be super portable and get a truck camper. Any truck camper will be a tight fit for 4 but it might be worth it to get back to our old camp grounds. My GF likes state parks... at least the ones with no hookups by the lake. I prefer the remote camp sites. Both of these really need a generator and a decent sized fresh water supply.
Gas mileage is also a concern for us. We do mostly weekend camping and spending a fortune to get some where to only be there for 2 days kind of sucks. I got decent gas mileage with my Diesel pickup and 26' trailer. My GF gets awful gas mileage in her 24' Class C. From what I can tell a Truck camper really wont be any more mpg efficient than a trailer. This kind of pushes me back to the toy hauler. A decent sized bathroom and shower would probably cinch the deal of going for a toy hauler.
These are just my experiences with the way we like to camp. Someone that enjoys campsites with full hookups will probably have completely different view of things. Campsites with full hookups have always felt like a step down from a Walmart parking lot to us... no offence to the people that enjoy full hookup sites.