It wasn't the best set really, but if you were very lucky (or a Diamond spendthrift), you could win a pretty decent combo of buildings. I just went for SoK's myself. It was easier than gaining a complete set of Winters Village. You could only win 2 of the Winter set from events, the other 7 you had to win randomly, and if you didn't get enough of them, you only had a pile of squat. I ended up with 5 SoK's, a Santas workshop, and a couple renkits (and a boatload of garbage) I didn't even do the last days Quest. The stars and 2nd Winter piece weren't worth having to scout a province and take over 3 sectors.