I've spent a lot of hours on the Weta at our club, mainly helping the disability program but also solo.
Weta is a great boat and I'm a fan of it for what it is, you can set it up solo easily, novice sailors can sail it confidently under 15 knots, you can go out in heaps of wind, ours has capsized twice in about 20 knots of wind due to skipper error and would have turtled if the water was deeper but it's easy to right. It wont keep your harness wet the mast is too weak for a trap, the harness on the boat is so if you fall off the boat doesn't sail away from you due to the tri stability. It's great fun in a blow and I've sailed along with the leeward ama completely underwater on a good spin reach no problem, it's more tiring than a cat in plenty of wind and very wet, Weta's not much fun in light wind, on a cat you can wild thing in the light so you've still got your heart rate up. It wont keep up with a hobie 16 around the course and cannot sail to it's rating you'll need to work with your club to agree on a suitable rating. It packs away very easily but is not quicker than a normal cat to setup. If you have heaps of wind where you sail it would be a fun boat to own, the kids at our club don't like it and prefer to sail on cats. You cannot leave it mast up overnight as each time the mast wobbles the amas rise and fall slightly which causes wear in the slide in joint for the amas, if its a windy day it's tricky leaving it on the beach on its beach trolley as the wind gets under the tramps, so it's better leaving it on the sand.