I have no idea as to the quality of that palette I have seen many many similar if not exact ones on ebay ..being sold with the title MAC pro palette and such.
Just FYI if you didn't know that is not an authentic MAC palette from my knowledge I don't think MAC has ever or will ever release such a ginormous palette ..and if they did ..I couldn't even imagine how much it would cost lol..
I have one. But when I got it I was fully aware that it wasent mac and the lady that sold it made a point to make sure I knew it wasent.
Which I think is real nice. Anyways, it is good quality I think. I got 72 shadow colors, plus 5 blushes on the palette for $10. I have to admit they are very highly pigmented.
I have one from ebay. It's not a MAC pallet, nor do the sellers claim it to be. For such a cheep pallet the pigment is AMAZING. I do find the more pastel colors to be a bit chalky, but the brights are smooth and bright as hell.