Well we went bigger, from our 24' Coachmen (still have it actually) to the Itasca Spirit 31K (which is identical to the Winnebago Minnie Winnie), when my wife decided we wanted something with a little more room.
Her biggest "want" was a walk around bed which pretty much puts you into ~ a 27' and up motor home.
We consider it huge inside, and it is totally useable/functional when the slide is in.
Overall we're quite happy with it,as it drives/rides/handles beautifully, although I must admit I have yet to tow a toad, which could affect the handling. They do have flat roofs, which is not the greatest design feature, and in my case it's an EPDM roof, although most others should have a fiberglass roof. I also don't have a fiberglass front (or rear) cap, as it wasn't an option when mine was built. Of course I have heard horror stories of someone who has a Spirit, and actually another person with a Leprechaun, both brand new, and they had major leaks in their front fiberglass caps.
For the price, which it's relatively cheap for what you get, I think it's a good deal.
One other unit, which I didn't know of when we bought ours, was the Nexus 25 P. It has almost a full length slide and gives you a walk around bed . You do give up a fair amount of storage, because of that slide, but I was quite impressed when I saw one, 10 months or so after buying the Itasca.