Advice for semi-newbie on used TTs

We just upgraded from a PUP to a 25ft TT. My son stopped going camping with us around 15-16 yrs old. So we are now a family of 4 and 2 large dogs. We mainly do state parks in our own state. The PUP was just to small for 2 teenage girls and 2 dogs. Not to mention, us parents getting older and having to set up and tear down. The TT we bought I found on Craigslist. Older but what we could afford without making payments on it. It has bunks, no slide, and a one-sided kitchen table. For us, it works fine. The only thing I don't like is not being able to walk around our bed on both sides. I still have to crawl over top of him to get up. We spend most of our time outside, including eating. But the one thing I did take notice of is... the reservation page on the state park website says that we can't get on alot of the sites we use to be able to...but since we go to the same parks all the time, we know what size campers we have seen on these sites over the years. And the reservation page is not always correct.