I have a NNE facing back garden. I would say mostly it is fine. Our garden is quite long, with no houses behind, so the bottom end pretty much always has sun from about March - October. I am a keen gardener and have loads of plants whoch all mostly do well (roses, lilacs,lavendars,lupins, delphiniums, etc... some hostas and ferns in a more shady bit under our cherry tree. )I also have a green house in one bottom cormer which I use to grow a vareity of flower seeds and tomatoes. We have 4 seating area, 2 neaer the house, which then offer some shade in the summer, and 2 towards the bottom of the garden so almost always sunny.
The back of our house stays nice and cool in the heat of summer which is a bonus and I dont find it too dark on the whole (I do have to think about colours when decorating the kitchen and dining room though so they donet appear too "cold".