I'm new to OSM, found it by chance when I was looking for a Japan map for travel use.
Google does not allow offline use of Japan map and my phone isn't compatible with the Japanese phone network. The only Garmin map I found was expensive, not worth for a single trip travel. Continuous search brought me to OSM, although the Japan map isn't too comprehensive in it's coverage, it's more than enough for my intended purpose.
Tried to replace my Garmin unit with OSM on my phone for use locally but found it lacking. Decided to contribute back to where I benefited from and so here I am. :?
It's my first attempt at mapping so I'm starting small, labeling missing street names, later will be adding new traces which is yet on OSM. Especially after buying a new phone few months down the road, the current phone will be dedicated to mapping purpose.