Not easy to tell just from the video but I would say it looks promising. I cant see any obvious dark areas or facets that dont light up as the diamond rotates. But you would ideally need an ASET or view in person - I think this one could be worth ordering to view as long as there is an acceptable return policy.
Some of the criscut clones are really well cut more so than the branded ones on average.
Picking a good one using those videos is not going to go well. You need more info.