I have a similar saddle on one of my favorite bikes and have ridden it for several hours without any exceptional pain, though nowadays, because I ride much less and my legs are weaker, i wouldn't choose it as my go-to for long rides.
It flexes some, and it supports my padded shorts in just the right places, and I like it a lot.
Every saddle is highly personal. If padding was what mattered we would all ride on tractor-seat sofa-saddles.
A lot of my bikes have fairly hard saddles, actually .... after one tour I did with a softish saddle which cause saddle sores, which really suck in the middle of a tour.