Congratulations on the new tank. From your profile it doesn't appear that you are an instructor so from a regular diver/owner point of view I would recommend against anything that will trap salt and do damage to your tank. If you are only using it in freshwater, it's ok to use a boot. If you are using it in saltwater then don't even consider it.
We only use boots on our tanks going to the pool for training. Saltwater tanks never get boots.
I can send you photos of the "line corrosion" caused by boots on a saltwater tank. The salt clings in a vertical patteren around the circumference of the tank. The salt causes corrosion and pits in the tank's outer wall. This parallel line corrosion will cause your tank to fail a VIP inspection.
Remember the resonsibility that goes along with a new tank. Keep your VIP up to date and don't run the tank dry.
When you do your VIP's look for a dealer that does the +3 inspections. This is the latest eddy current testing system that will actually give you a printout of your tank threads and will document any cracks or damage. It's superior to just a magnyfying mirror and light method and actually backs up the strictly visual inspection.
If you decide to add a boot, some of them have flat spots along the side to theoretically prevent rolling. Don't get complacent, never rely on the boot to prevent rolling, they will roll. Always secure your tank whenever it's being transported.
Larry