"I admit that - was buying the sets to get tickets for the movie (not that I'm not into LEGO, I'm just trying to constrain the budget, and, after Christmas, I wasn't expecting to buy any new sets for a while).
At first I was pondering whether it's worth it (I'm still not used to the LEGO pricing) - the pictures make the house quite small, and the extra elements are just somewhere in the background. What was my surprise when I found out you actually start the house build with the "auxiliary" structures, and there's so much detail to it! Took some hours (7.5 years daughter was building that), and the house started to shape up only at the evening.
It was two weeks before the movie, so the plan was to "transform" into the rocket after we watch it. It's in progress, but it already starts to look great, and it's so great to see what parts of houses are used in the rocket and what place they take (as we speak my daughter is yelling to me that the "TV is now on the wall, just like in our house", whereas previously she was amazed at the way TV was mounted at the house version (rotating)).
Overall, the very idea of the house/rescue rocket in one is amazing (for someone raised on "old" LEGOs, the idea of having alternate builds is a defining feature). It ties the two-sides of movie's Emmet in one great product that just looks great, and rebuilding it is just so much fun."