My eight year-old nephew clicked this X-Wing fighter together in about 3 hours, and then spent two days playing with it, nonstop.
This Luke-era X-Wing, with Luke and R2 minifigs, was the project of choice for my nephew. He said he loves to build LEGO, and attacked this set with gusto. Unlike my daughter's massive collection of Star Wars LEGO, which is all carefully organized on our living room shelves, nephew plays with his LEGO builds hard.
It is fun to watch.