Hey, we from 12th to the 18th Jan 2020, and did lots of granite cracks at the crags around Tafraoute. If you take a look at my logbook you should be able to find them, i think it's set to public. All the ones on there i thought were really good, about same length as standard peak district routes, and mainly in the grade range you talk about. Sometimes the granite can be a bit crumbly but pretty good rock quality on all the routes we did. I like hand/fist/OW size cracks so the ones on my logbook probably are more that type than slabs etc. There are some bolted slab sport routes which are nice. No problem with retrieving gear on ab on any of the routes we did, access to the top pretty easy on all of them i think.
It's really easy to get out from Tafroute, you can even walk if you like, takes about half an hr to an hr to most crags around the town.
We used the 'Climb Tafraout - Tafraout Granite' guide which was really good. If you don't already have a copy, message me and i'll try and get mine to you.
George.