My Hooples seems to ripen in a similar window to YD. I don't have YD but I have some of its children and they are all just getting to ripe in a bit.
Hooples is one awesome apple, super flavorful. The only YD school apple in the same league for taste is Freyburg, but Freiburg is much more prone to rotting.
Disease-wise the apples are amazing, no blemishes at all under my super-minimal organic spray program (I have not sprayed my apples in over two months now, and the apples got only organic sprays all year this year). I also have not noticed bad leaf problems on it, it seems relatively low-risk for CAR.