What Janet said! I have a bit of a poison eye because it is a sort of boho-hippie-mom look in my city. And my husband wore them for years -- until he tripped (because the sandal was too wide for his narrow foot) and broke his foot and very narrowly escaped a worse fate -- he also smacked his head and was fortunate not to get a concussion! Finally a doctor told him to start wearing more supportive sandals.
Back during the 90s when they were cool for a while, Mr. Suz tried to convince me to buy a pair. He found them so comfy. Well, for me, they were agonizing. I really found them horridly uncomfortable -- the inflexible sole, the arch support was in the wrong place, my foot slid around and I had to work to keep the sandal on...it was just ...yuck.
So part of my aversion is my own feeling of discomfort. It's not just a style thing for me.
But...I do find the last Zara pair strangely appealing, and I also like those spongy soles (if they provide some actual softening effect) and so I can see myself succumbing to a version of these with straps of some kind and a less "Birkenstock" appearance.
In the meantime, you look fab in all of these (and Karen's right -- your hair is great) and if they do pass the comfort test, go for it!