A.R.
Keller ISD offers Clayton afterschool care at the elementary schools.
http://www.claytonyes.org/
I liked Clayton, but your experience is going to be highly dependent on the site manager. Ours was very nice, but a stickler for rules and not really 'boy' friendly, which was a bit of a problem for us since we have a typical boy :) The main complaint I had with it was that all the kids were together and my K daughter spent most of her time with 3rd & 4th grade girls and picked up some inappropriate things. Not entirely Clayton's fault, but they couldn't prevent it and it was enough of a concern for us that we pulled them out. Again - different campuses have different site managers so experiences will differ as well.
Children's Lighthouse on Shiver is also a great daycare. All the afterschoolers are together, but they have more kindergartener appropriate toys/activities. My son went there after first grade and we really liked it. Owners are nice, front office staff is fantastic, and the teachers are good.
Children's Courtyard on Parkwood-Hill Blvd is very nice, they keep the kindergarteners in a seperate classroom which I really liked. We didn't use them because my schedule changed, but they looked great. If we needed 5 day/wk care again we would use them.