perfect mystic rectangle in composite chart?

What does it mean that in my composite chart with a guy, we have a PERFECT mystic rectangle. That is, every single aspect is on the mystic rectangle. There are only two lines off, but even those two lines are only a sliver off of the mystic rectangle.

Also, in general, it is a very strong chart - for both synastry and the composite. The only really bad things I see is that only mars is in the 7th, and saturn is conjunct venus in the 10th. But we also both have saturn conjunct venus in our individual charts, so I think that this is actually supposed to be good. (Right?).