This may be a controversial opinion here but I'm going to say don't buy Blacked Premium, and I have my reasons.
Blacked is great and has done a lot to get us into the mainstream, but I don't think it's worth the money. Blacked is overpriced and so much of that money goes back to whiteboi producers and funding all the other non-Blacked vixen productions. There are plenty of other high quality and amateur interracial creators to spend your money on and they'd probably be a better value too. Onlyfans, findoms, or just more independent IR sites will have you feeling way better about where you're spending your money. Plus Blacked is pretty much the easiest to "find" videos around, even uncut and ad-free.