I didn't enjoy this. I was dissapointed, as I enjoyed Civil War and thought House of M was quite good too.
I like what I have read of Bendis (Daredevil mainly, though also enjoyed Alias. I read the first few Ultimate Spider-man volumes when I started following comics, but was not overly impressed with them) so was expecting to enjoy this, but it was just too scatty. It didn't really make any sense in its own terms. I roughly knew what was going on before Secret Invasion (from wikipedia as I don't follow any of the relevant comics), but if I hadn't it would have been pointless as it relied heavily on you knowing what is going on. I think if you followed New and Mighty Avengers you would enjoy this, but it is not a good way to get into comics or the Avengers franchise.
The art is quite good though I have a couple of complaints. Yu's faces are too lined and look very odd. Also the costumes (particularly for the female characters) are just too skin tight and show off their bodies too much. I know this is common in super-hero work, but I am used to series like Daredevil and Captain America, which are a little more subtle.
The volume itself its very good value. Eight larger than usual issues (I think they are 30 pages each rather than 22) plus two extra issues that are related to the event, one having a few short stories, one being an encyclopedia of all skrulls to appear in the Marvel Universe since the 60s. The variant covers for an issue are all included on one page, which is acceptable considering there are quite a few covers, but not ideal.
In conclusion, I would only recommend this to people who follow New and or Mighty Avengers. The story is just too tied in to the plots in those comics. It's not that bad in itself, just not accessable enough. I have reviewed this assuming anyone who hasn't already bought it does not follow the Avengers franchise.