Wow, I wasn't even aware there were pterosaurs this large. I thought the Pteranodon was the largest of them all, but Quetzalcoatlus and Hatzegopteryx dwarf it. They are really impressive.
I'm not scared of these giant reptiles though, but awed. It'd be awesome if it was possible to see one of them in real life. I wonder if people in the near future will feel this way about lions and tigers, "such a shame I missed them!". But even in that sad future, at least there would be video recordings.