A friend of mine has a 5 door, and he loves it. It's very unique and very euro. A lot of cool features like rain sensing wipers, and the gas door locks with the power door locks. It is very solid, the doors sounds like a vault when they close.
The Astras have the 1.8L from the Cruze, and it sure isn't fast. The other complaint is no aux-in, GM used that port for OnStar when they brought it to the US.