I had the experience of a lurid pink Seatribe in Durban. The Seatribe's an awesome little weekender! I'm quite happy with their choice of rig, but I might look at maybe an extra 3-6' or so on the stick were I to buy one for me only, and a F/B mains'l, just so I could behave REALLY badly with it!
Anton du Toit designed it, and his design crosses quite nicely between "family boat" and "dad's toy". It drives quite lightly, and everything's just the right size- nothing feels plasticky.
Downside: I'd look at getting their special trailer to help with the assembly if you wanna cart it all over the country, but then you'll need a 3-litre pickup or so to pull it any great distance, because disassembled it's still not a laser or hobie. It's very definitely a 28' cat with respectable accommodation!
I'm a little biased- I saw the pink one being built, and the guys that built the project
are craftsmen- vacuum infusion and stupidly-superior spray finishes are the order of the day, as well as custom fitment. I compared it to the other portable cats on offer out here, and there's a world of difference!