Have only used it briefly but so far so good. There are in app videos to get you started immediately. Have not had enough time to produce a final product with it. (which you have to pay $2.99 for a per copy) I understand that things cost money. But they could give people basic PDF's without the measurements or labels to share/workwith.
May do a review after I've had more time to use it. Then update here and post the review accordingly.

Pros: uses the camera to measure & build rooms.

Cons: lacks in app documentation for the more detailed functions, which is needed because this app has an extremely large amount of options. (for an app)