You're lucky (or smart) that you didn't post that in the Graphics forum. Jessica Lares was way more helpful than the group in there would have been. Kudos, Jessica.
Huge fan of Pixelmator. It seems so much more responsive and lighter then PSCC2014 (yes this is how they seem to be naming it).
Unfortunately Pixelmator doesn't support everything Photoshop does, and as a result even if you are taking someone's complete PSD and try to use it it won't show everything.
I had to bite the bullet and just join Adobe Photography Creative Cloud just to be able to check PSD's to validate that they are right.