There are no plans to spend any more effort on compatibility until the Gameboy Advance is no longer on commercial sale as such, bug reports for this emulator will be ignored at this time.
It is also able to run a wide variety of commercial games, although there are some known issues that prevent some titles, particularly newer ones, from working correctly. Boycott Advance was developed to run home brew Gameboy Advance software, and to that end it works quite well.