I have the HD Loose powder and I love it. I'm an NC25. You can tell a difference once you put it on. Pores are smaller. It's great. Worth the $30. You only need a little though.

As far as shadows they don't have quite as many as MAC but if you like BRIGHT colors they do have what MAC lacks. Some of MAC Pro's e/s are bright but for the most part they don't carry bright colors like MUFE.

I have the Velvet Matte powder and I like the coverage. It stays pretty matte on me, still.

As for the Aqua liners, I've tried using the white one on the waterline and it didn't work out that well. But I haven't tried to use them for normally lining.