The sequence files looked horrible with default video settings, Kadri. I had to use some smoothing and blur filters to smear out the flickering, it really wasn't nice at all.
I used GI relative detail=2, sample quality=16, blur radius=32(this with a 'ray detail multiplier of '1', too). It was still terrible. I won't be trying to improve on it until there is proper, working GI that is able to be used in sequences, raising quality even further isn't really an option that I savour.