Hmm but do they have clients and good servers. I have a lot of drone and helicopter aerials and I'm being approached regularly by these aerial stock sites. I gave a couple of them a try like Airstoc and AES, but their pages are slow and sales not good. Adobe Stock as an example are selling my 4K material for $199, leaving me with around 30% and the sales are much better, and the site is always working. Just my thoughts.