LEGO Christmas Build Up 24 in 1 Set 250 Piece Building Set 40222

I bought this in place of the advent calendar bc that was no longer available anywhere. This seems like a great alternative bc we could build 24 little models! My son likes to display his Legos on a shelf once he builds them. However, once we got the box and opened it, we were shocked at the size of the box and that all the Legos were packaged together. Ok, not that big of a deal. We built the first one and it was fun and cute! Next day we were building the second one and there was a piece we needed but couldn't find. Upon closer look at the instruction booklet, it states in tiny print “models cannot be built at the same time”. Wow how disappointing! That's pretty dumb for a 24 in 1 set. Wish I had not spent almost the same amount of money on this as the advent one and just gotten a different kind of advent. Or I could have bought a bigger regular Lego set. Mis-leading and disappointing product.