Will it charge my Jackery power station directly?

Yes. It has a DC output that plugs into Jackery portable power stations and most other stations with a compatible solar input. Check your station's input voltage and connector before buying.

How much power does it actually produce?

The rating is 100W under ideal sun. Real output is lower in clouds, early or late in the day, or when part of the panel is shaded. The bifacial cells can add a little when light reflects off snow, sand or water.

Is it really waterproof?

It carries an IP68 rating, so rain and splashes are fine. The junction box and cables still need to stay dry, and it should not be submerged.

How does it compare with a rigid 100W panel?

It is much lighter and folds for transport, but a rigid glass panel usually delivers more power per dollar and handles heat and shade slightly better. The Air wins on portability.

What can I charge with it?

Phones, tablets, cameras and power stations. It can feed up to three devices at once, but total output is still capped near 100W, so large loads charge slowly.