The May 2024 Organic Maps update with bookmarks and tracks sorting by name, better paved/unpaved paths colors, GPX import fixes, drive-through, and many other changes

Organic maps looks beautiful, osmand is kinda bland

It is way way lighter weight and is overall a better experience. I use osmand for routing because the voice is much better tuned (OM just says barely-useful things like "turn left" instead of "turn left at Broadway". I think both have their uses. If the voice was better I would use OM exclusively.

What are some reasons as to why I would want to use this over, say, OSMAnd?

Osmand isn't fully free software. Some parts are under CC Non-Commercial license that forbids derivatives to make life harder for potential forks: https://github.com/osmandapp/OsmAnd/blob/master/LICENSE#L39 That's both against the Open Source Definition and Free Software.

I use both all the time. Organic Maps rendering and navigation feels snappier, even with 2.5D support, and less cluttered, but since I do contribute to OpenStreetMap, OsmAnd is unmatched for editing and access to power tools like up-to-date data, GPS tracking, PDI editions, etc.

Unfortunately, in my country the map is not as complete as the proprietary options, so, using OsmAnd is more practical for me. As a regular user, though, I'd prefer Organic Maps.