Gah. Just two days ago I finished what must have been our fourth rewrite of Kotlin code to interface with Android BLE. It's a complete trial by fire experience. Various medium and other blogs on the net are a morass of "find the true information amongst the disinformation". If I had a nickel for every "just put a delay here" so called solutions.

We have two apps, one that communicates over many variously configured characteristics, and another that uses less characteristics but pushes/receives just as fast as I can get it to go in big bursts.

The edge cases around connect/disconnect events are the most frustrating and most difficult to reliably debug and gain confidence your implementation is robust. Oh, and don't forget that just because it works on your Samsung, doesn't mean it works on your Moto.

Assuming this new implementation is indeed much better (and not just swapping one pile of surprises for a new and shiny, but different, pile of surprises) my hat is off to the folks behind this. You get a big fat atta-whatever for making the world a better place, even if I wish it had happened 4 years ago.