Dark Horse "Omnibus"

Well, depends on how much you love the stories behind the games.
Some of them were nice, some were kinda off.
The artwork was also mediocre and many times I had my eyes rolled due to the way some of the characters were drawn, especially Liara that was often drawn bending down awkwardly, like she was modeling for some sort of a swimwear magazine...
I don't remember any story there that was particularly very good, mind.

But if you are like me and want to get every drop of new ME universe story, than go for it if you haven't read any of those.