It's easily OK for me, but then I haven't really understood the love for GB this year. I think the 30ml perfume and ND palette are the only real draws, and neither tempt me. I haven't tried the Commodity Milk yet so the 5ml in OK is good enough for me, I don't want to get stuck with 30ml if I don't like it.
I actually think ASOS is better than GB, but then I like SDJ and Elasticizer. The brands in OK are better IMO - Eve Lom, AA, Bobbi Brown, Laura Mercier, Nuxe, and the Rodial is full size. GB has Rodial but deluxe size, and the only other 'luxe' brand (luxe at this price point) is Medik8 but it's the floral toner which I don't really want. Perhaps also Emma Hardie, but again I don't like that product. GB also has quite a few very un-luxe brands (MUA, Avant, Brushworks, and Aveeno but at least it's a good practical brand) and hair clips, so more stuff than OK that I'm unlikely to use and unlikely to be able to sell which would feel wasteful and environmentally crap of me.
As always, it's subjective and will depend what you'd use.