Well, there is no MAC store in my country, but there is Make Up Forever store. And my friend works there, so i quess i know their products. Some are really good.
As giz2000 mentioned double-ended concealer/lip liner pencil is a miracle, i dont have it yet, but will definetly get.
Their eyeshadows are very pigmented, especially black one. And Star powders are just great. I like white frosted chamaleon like Star powders most, but want to have them all.

But the greatest thing from Make UP Forever is their Face and Body foundation. It is very sheer, may be it doesnt cover very much, but the main thing is that it stays on all the time. It also doesnt smear clothes, it just stays there you put it. And it gives a very nice glow.
Sorry my english is too poor to describe it right. So, if you have a chance just try it.
One more interesting thing Make Up Forever have is brow gel. it comes in a small tube like MACs Select cover up concealer and applies with brush. It is waterproof and has good staying power.

I dont suggest to by their lip pencils, its crap.

Hope it helps!