Have recently bought this dishwasher and have to say it cleans much better than the German Bosch I had and is very quiet. I paid a little bit more so this is a pretty good deal. I don't think this would stack with Shopback but you may as well give it a try as some codes may work.
You can also call up Appliances Online and pay an extra $200 after to get it installed. If your old one is disconnected they usually take it away for free.
This model has pretty good reviews and if you register it they give you a 5 year warranty.
Is the professional installation for $200 required? Is this not pretty much straight forward / plug and play sort of a thing?