I've been chatting to them recently about booking them to come in and they have been fantastic. They include a veil and petticoat with the steaming cost, but charge for an extra item ($20 I think) if it is a full crinoline.
They have really worked with our schedule and a few issues we had and have made everything really easy. I've got a dress that I am wearing to our evening meal and they are going to steam that for me too.
They charge extra for ironing rather than steaming I think, but they can confirm whether your dress needs steaming or ironing by the fabric type on the label inside.
We are going to them on the Monday to fit the suits we are hiring, and then they are delivering on the Tuesday when they steam my garments.
I think they are great, very helpful and friendly.