I was fortunate enough to get a copy of IA11 for Christmas and since then have been trying to get some games in with the new Corsair list. I've managed to get 2 1850 games in and 1 Apoc game that doesn't really count. Both 1850 games have been vs. blood angels and I have to say I really like how the army plays. It is similar to a mech Eldar army but taken to an extreme. Eldar are shooty, Corsairs are super shooty, Eldar are fragile, Corsairs deem of the day they can be a tough as Eldar. Craftworld eldar can be fast, corsairs are always fast. There are a few items that the corsairs really miss, namely quality psychic powers and defense. Overall I think FW did a good job making an alternate list that is similar but different without making it over/underpowered. The internal balance could use some tweaking but no codex is perfect.
Here are a few sentences about each unit.
Here are a few sentences about each unit.