We have been using this module for over a year now, in different applications and with different sensors. I love this board!
To compensate for small memory, we do use a miniaturized version of LMIC, gps and such. ABP is used for simplicity, and also this means we do not have to solder in the extra wire.
Shared code needs to be made nicer for re-use. The github provides older variations with more function. Our intention is to make this code easier to use for all, so suggestions are welcome.