It's definitely fun. Took me around 5 sessions to manage to go upwind and stay upwind. That's with no wind knowledge or experience, if you have prior of either you could probably do it straight away.
A tip for anyone like me - Feet facing forward and pointing your hips to were you want to go. Steer with your hips and not the wing.
On one session a wave was breaking off the harbour wall, really full not properly breaking. I was on a Jp 10'6 sup, winged over, turned 90 degrees (stepped back turn) and flew with the wave. Really good fun and got some great speed.
I will learn to use a foil with the wing, but the wing will definitely still be used with the sup. I will put my kids on it with me (very safe), Id do a downwinder on it, do a journey on it and play in surf.
It's fairly physical, after an hour I'm bust but thats been in pretty decent wind 15 to 30 knots. I like that feeling though, the same as having a decent paddle or sup surf.. Spent but happy..