I've just got the lightest shades one. Love the packaging. The concealers work fine; it's not a new product, just MAC's studio finish concealers and pro correctors in pro friendly packaging. I do like other concealers better, I think LM's are better but that's JMO. But this new packaging, especially the lip palettes they did in these containers, are the first kit friendly thing for pros MAC has done in a long time, so I'm liking the lip ones.
I just purchased the darker ones as well and the first thing I will say is that they're pretty much just full coverage foundation in six wells. Mind you, SF concealers and FC foundation are arguably the same thing, save for an added SPF. I've depotted MAC FC foundation into one of the new 12-well pro pallets and I find myself using that much more. For personal use and saving space, however, these are great pallets.