“I’m not a professional Lego builder or anything at all but it took me all day and I’m in my 40’s lol it was fun building with my daughter. The instructions could be better, when you scan the app, it does not do 3D rendering of the pieces like some other set do. No zooming in and out or rotating, just page by page scrolling, the same as the manual. So it makes it little harder to put together and since it’s more expensive, I would expect that feature to integrated into the app for this product.”