I did all the puzzles and maxed out on population without level 3 science or exploration, I may just spend some tech points on those but after over 1500 of play I aint bothered, and I found the last collectable too , hmm should I buy it? erm no!!!I dont like spending when i can get new frock instead , actually saying that , what a waste of space the sewing hut is!! who cares what they look like I mean who cares, its just a building project for adept builders then its an ornament , I seriously dont buy and dont intend to. hmm and my 3 adept builder gained nowt anyway ! still same as they where before, that hut is a waste , should have been a school , or a museum or something interesting!