I have gambel quail. They are so adorable and fun, especially the babies!!
However, they do create a lot of messes, especially adult birds! One lived in the house with me until 4 months old. I covered all my furniture in blankets, sheets, or towels and cleaned the floor every evening. Now she lives on a screened in patio.
Gambels are very energetic and love to run and fly. I definitely recommend an aviary or screened in patio. They would not be happy in a small space.
They're not a good quail for meat or eggs. They are small and only lay eggs during the mating season. My girl is 11 months old now and has laid a total of 9 eggs, all in the last two weeks. She is very proud of them!!
Gambels can get very attached to you and will want you with them all the time if they consider you part of their flock. It is easier if you have at least 2. My girl was very anxious beginning of spring until she brought home a male. Now she is much more content (and quiet).
I also had 5 boys that were pretty close. They got along well and stuck together until one found a mate and the others joined a covey. But that's another story...