This can be useful to many people, as I found myself buying items in the store which ended up being very disappointing, and since they are not returnable, it is good to have some feedback before taking a decision for which there is no turning back.
The worst item I bought in the store is the "Queen Eloise Bust". It is really small, it is hard to understand what the model is trying to depict, and in my opinion it is difficult to make it combine with other deco items. I don't mean to sound rude, but honestly I think this item is kind of a scam.
I was also a bit disappointed by the Curly Hortensis Lamp, it is smaller than what it appears to be in the store. I don't think it is an item worth 120TC.