Adults are especially good for first time cat owners.
The upside to an adult is unlike kittens that need to go to the vet every 3 weeks for boosters, adults are fully vetted for 1 year and already spayed or neutered. Also, keep in mind that it's not the kitties fault they got picked by an irresponsible owner that gave them up. Any one of them could be the kitty of your dreams. He was rescued from a local animal shelter when he was brought in by his owner screaming due to a very painful broken back leg. He is very appreciated to be alive and is a total devoted loving lap cat.