This simple tool is for those who (like myself) use Google Maps to pinpoint the travel locations (with descriptions) and then use some other tool with maps cache (like OSMAnd, which I highly recommend) for actual navigation.
I know that Google Maps app has maps cache, but it's limited to territory and number of cached maps, and it still uses network when available, and it doesn't cache points. So OSMAnd is a way to go.
Also to mention OSMAnd and Common GPX differences: in OSMAnd, only POI names are displayed - and no descriptions. Which is unhelpful. So OSMAnd export adds KML description to point name for instant availability.
Oh, and it's BETA - so if you face an issue or want a feature, please send me a message (remember to add KML URL you have used).