This is a good airport hotel. The reception is spacious and well staffed, the room was comfortable and clean. The room is well stocked with nice toiletries and tea/coffee. The shower was not great though and the tv is pretty basic, if these things matter to you.
I would recommend walking to a local pub called The Post Office for dinner, as it is only 5 minutes away and the food was really good with a good selection of drinks and lovely staff. You get a 10% discount if you are staying at the Heartland.
We had the free breakfast, which was fine, but this must be the only place in NZ with terrible coffee! Yikes.
Finally, we used the shuttle bus and the service was excellent. Overall, a very good option at a reasonable price.