Cuav V5+ experience

Hi dears,
I want to use Cuav v5+ for quadplane or plane with ardupilot firmware, how is its performance with ardupilot firmware? (Gps, Sensors, flight altitude…)
Do you have the experience to share?

Following this note from the datasheet, is the flight altitude limited?


It is a flight safety recommandation in order to avoid conflict with other airspace users. It is also mandatory in most countries.

There is no hardware limit.