So far so good. I installed the beta on a newly flashed/cleared phone so no leftovers such as previous rules were lying around..

Only slight glitch was the rules I'd set up disappearing after the first reboot after installation, but they survived a second.
It switched to 2G as it should this morning and I'll find out if it goes back to the default of dual later today...

I'll be sure to visit your donation page sometime soon!