I recently purchased this concealer, because the reviews were so good and the users at Macys raved about it. I haven't been using this too long, so I don't have any negatives yet - BUT so far it's working very well on my skin. I have tan oily skin and most things lift off my face after awhile - this product "stays put" and the coverage is fabulous! I haven't experienced any caking etc - but maybe it's because my skin is not dry.
I don't have severe discoloration under my eyes like some, but my skin has gotten a little dark in that area from stress & Maquicomplet hides it so well. I'm using a color that's a little lighter than my actual skin tone, but it blends in perfectly with my Shiseido powder foundation. I used to hide my eyes under my glasses - Now I'm not so paranoid and use my contacts more and show off my face. I'm in my early 40s and people think I'm in my late 20s - what an awesome compliment! I'll be using this concealer as long as it's available.
This is a great product - but the price is a nightmare for such a small thing - so I only gave it 4 lips. I purchased from Macys incase I wanted to return it easily, but I found it quite reasonable on ebay and I'll go there to purchase again. It's a KEEPER!