Cubebrush is great if you are a seller because it provides a medium where buyers cannot test the product nor see what will be offered them once they make a purchase. The entire site should be slapped with the warning of, "BUYER BEWARE!"
The platform, I'm sure, informs the seller how many times their course was downloaded and if a particular buyer has even watched the videos or downloaded the material. Therefore, they know whether you have actually used the resources or not and if you haven't, there's no reason why a refund shouldn't still be on the table.
The platform offers refunds within the first week. I sent three emails to their team within that first week and received no reply. Three weeks later, "Mai" responded to me saying there is a no refund policy. This isn't only a lie, it is against fair trading law.
More so, Cubebrush have no vetting process to check whether the sellers are actually selling their own work or not. You will see many resources being sold here that isn't actually the seller's own work (very easy to verify this through Google image search).
Because of this and because this platform does not follow any lawful practice, there is no guarantee that what you purchase on this site is in fact now yours to use. You have nothing to prove your license is yours since:
1. The seller can be selling products that aren't even theirs to license out
2. The site can block you from the items and hold no accountability
No, I do not recommend Cubebrush. I would mark it with thick red tape and warn any buyer from coming here.