There is very little story in this film beyond an over-confident man being over-confident in his property-improvement skills. Ice Cube buys a beautiful dump for his family, and then falls into a nightmare of rehab work, while living amongst the rubble.
The chaos is ushered in and directed by the annoying actor who plays the attending doctor on Scrubs. In this film he's the realtor, general contrator, midwife, code enforcement officer, and general nutcase. He's not funny, and he's not believable.
The only decent moments include comic relief when Ice Cube falls through the roof or a chandelier falls onto the dining room table, etc, and some of the family moments, as Cube attempts to relate to his step-kids.
This is harmless and watchable, but disappointing and over-the-top (in a bad way) overall. Purely a rental.