No experience, but it is supposedly MullvadVPN in Mozilla clothing. I think there are less servers than mulvad potentially for the same price (cant see their pricing in australia).
Privacy policy suggests they log a bit more about you if thats a concern. If so, probs just better to use mullvad. Literally proved the other month that they had no logs after a being raided/warranted.
Infinity for lemmy has been released on izzyondroid/f-droid. Pretty much exactly like its reddit counterpart in features and was my preference over sync. Si im happy it works for lemmy :)