Yes. I use Blender to create my models and export to FBX and I need to rotate it on the X axis and the model will appear in the good transform in game.
This works well with XNA but for MonoGame, the scale and rotation has no effect.
In the process I found some other issues with the model processor that may or may not affect you. Because of this I started adding a unit test for the model processor and should have a bunch of little fixes committed tonight or tomorrow morning.
SoundEffects created with XNA should work fine in Android (that is what I tested the OpenAL support with). Were you using Low or Medium compression quality? I’m getting back onto the audio content pipeline very soon and will be able to ensure everything is working properly.