Below is the south side of my Lemon Zest. It set and has retained lots of fruit, from the second or third bloom. So far so good.
The north side set a few fruit from the first bloom, which have been devoured, and not many from later blooms. From this side it appears that the canopy is becoming more "open" in that some interior branches are losing their leaves.
I have seen some of what seems to be bacterial black spot on some leaves, but am hoping this is the "old" less harmful sort.