Absolutely love organic maps for cycling! It recommendeds sensible routes that are much safer. The only feature I miss (and I know organic maps strives for 100% feature completeness even offline so this would be unlikely to be added) is navigation using public transit in the UK. The national rail app is painfully slow and isn't easy to just search a location and just go, but it does work. Every bus company has their own app too... I haven't found a good replacement yet unfortunately :/
I have the opposite experience for city biking at least. OSM / organic takes me on main roads, while gmaps is smart enough to keep me on bike-friendly roads.