I've found that OsmAnd's directions are high quality, but it's UX needs some more TLC. It's something I can use because I found poking around at it somehow enjoyable, but it's not something I can yet recommend to people who aren't peculiar in that sense.

I'm not saying they are perfect, but I installed it on my parents' phone and the learning curve is not that steep. They are perfectly usable by mere muggles.

OsmAnd is being developed at a steady pace, and the UX is being improved.