I am a big fan of 14' boats if you're not planning on owning a quiver of rafts. Both my current and last rafts are 14ers and I think that size allows the best compromise if you plan to both row and paddle it. I do both paddling day trips and camping trips with a frame on that raft. I have r2'd on 14' rafts. I don't know if I'd call it "fun". It's okay and it'll get you down the river. Paddling a raft that size, 3+ people is more enjoyable. But I couldn't imagine going smaller then 14' if you plan on rowing multi days. I have done weeklong trips for 2-3 adults, and plenty of 2 adults and 2 kid family trips, out for 2 to 4 days, on that same raft. I try to keep a pretty efficient and organized raft and have never been uncomfortable as far as people or cargo space on a 14er. There's lots of fun to be had on that size raft.