Our previous 33 ft Class A had no slides and we made many happy memories with it. For years I said I didn't want the added complexity of slides, but then my wife came across a newer 34' Class A for sale that had a single 14 ft "super slide". When she took me to see it, I was fully expecting to find all sorts of reasons why we shouldn't buy it, beginning with the access that would be lost with the slide retracted. But on arrival, I was surprised to find that I was wrong in this case, and no access was lost at all except one seldom used outlet. Everything else checked out with just a few minor issues that I could easily fix. We ended up buying it since the floorplan fit our fulltiming needs quite well. Now some years later, there's no way I would want to go back to no slides again. The larger living space just makes the coach much more home like, and our slide has been trouble free except for a simple $12 switch replacement a few years ago. So there you go, we've been on both sides, and are now solidly pro slide.
