Being the owner of both type grills, hands down, the flavor of charcoal grilled foods is better than a gas grill. End of discussion.
And you don't have to use one drop of charcoal igniter. Buy the charcoal can starter. It costs about 10 bucks. You wad up one piece of newspaper in the bottom, fill the can with briquettes and light the paper. You have hot coals in 10-15 minutes. No mess.
Clean up between the two is about equal in difficulty.
Push the button it starts.
Multiple levels of racks.
Generally a bigger surface to cook on.
Taste is much more what you want from grilling.
Stores in a very small space.
Large expense in buying more fuel.
You never know if you have enough for your dinner so it is almost worth it to have a spare tank. It is a pain.
Wrestling with and replacing the tank.
Having to mess with the charcoal can be a bit challenging but once you get down your method it is not so bad.