In my model, I used this tool many times. In only about 25% of the time did it work correctly. In the other cases, I had to move the plane to a correct position. As you can imagine, this is not precise because you really don’t know where the points exactly are. This results in some of the small gaps you see in the model. After a while you get worn down…
Transform - Move/Rotate/Scale
My biggest clueless factor resulting resulting in a lot of frustration was not understanding that this function could be also used for planes. The onscreen help only states shapes and groups — when it can also be used for planes and sketches.
Hoping this post may save another new user some time and frustration.