CoMaps is great!
I'm still mostly using Organic Maps though, and from time to time I switch to Comaps to see the differences.
In general I like the colors of CoMaps more than OrganicMaps (light theme, dark is so-so), but I still use OM because:
- OM shows colors for marked trails. Pretty recent feature and not as good as in Mapy.com, but at least I don't need to switch to Mapy.com just for this feature.
- recently OM added public transport routes. UX is quite bad, but it's much better that having nothing! It was quite useful at my last trip.
The nicest feature that CoMaps added recently are map updates that are independent to an app update, and they try to update maps like once a week. So it's much more probable that you will have more up to date data there than on OM. So I started using it more too :)