Be very careful with AVCS/Heading Hold. It's really designed for Helicopter Tail booms and can have some very unpredictable effects on an airplane.

The gyros make the plane a lot more stable in gusty conditions. You will probably really like them.

One caution: Gyros tend to hold the position they are in. An airplane set up with a stable CG has a tendency to drop it's nose when the airspeed gets too low. The gyro will counteract that tendency so just be mindful of that. You just need to be a little more concerned having enough airspeed on landing with a pitch gyro.