Just how much support does the BlueRov2 have for PX4?

I see in this and this documentation that the PX4 provides experimental support for the BlueRov2 Heavy Configuration. I am building an app that lets users control the BlueRov2 using MAVSDK and that is the reason I plan to use the PX4 firmware. So far, I have my app working with Gazebo Classic simulators. Are there any caveats I should be aware of as I test my app on the Bluerov2 Heavy Configuration?