The installation is very easy and the modification to get it installed takes some work so you can cover the gaps.
below is not my grill and it is not a 1100 but I will take a picture of mine this evening. You can see how it will install and with the 1100 you will have openings because the current PB controller. The controller is well worth it and it is not tough to install. If you have any issues or question there customer service is amazing.