Didn't read all the stories, but did read these ones:
Niederwald by Rachel Vincent - 4/5 - Soul Screamers short. Enough said. I adore the series so much.
Facing Facts by Kelley Armstrong - 3.5/5 - really good little short from her Darkest Powers series, set after the trilogy so be warned, there are big spoilers for it!
Bridge by Jeri Smith-Ready - 5/5 - worth the money for this alone! Just about had me in tears. Though you probably need to have read Shade to really get it. But the Shade trilogy is amazing, so do!
Skin Contact by Kimberly Derting - 4.5/5 - excellent back story for a character from Desires of the Dead (no spoilers for the series)
Leaving by Ally Condie - 4.5/5 - strangely intense and gripping. I wanted more.
The Third Kind by Jennifer Lynn Barnes - 3/5 - bit bizzare, but good. I'm sure plenty will enjoy it more than I did.

I'm 'reviewing' this now because I may or may not read the other shorts at a later time. I do think though that together the quality of those I have read, certainly makes Enthralled worth buying. And I'm certain the ones I've not read are also at least good reads, and potentially even excellent for the right people.