Bought the bundle mainly for the gentle version and I'm glad I did, since the softer vacuum is way more forgiving if you're not used to this kind of thing. The regular cup is intense in the best way, and having both means I can pick based on my mood instead of committing to one.
Didn't expect the two strength options to make such a difference — the Gentle version is way more forgiving on a slower night, while the original vacuum cup is intense in the best way. The suction holds up through the whole thing without any fiddling.