not bad price for vent visors at just $110 a set. however what I would like to see are some aftermarket versions with a bit more character.
rugged ridge was a great example of this with the JL for anyone that remembers.
Window vent visors only are effective in keeping rain out if the windows are nearly shut and the doors are shut also.
Check with Home about true rain gutter extensions. The molded extensions use 3M double stick tape to run from the front of the gutters forward down the A-pillars. They worked great on my JK. The extensions for the JL may not be ready for sale yet.