My nephew likes it a lot. He's a popular kid and loves hamming it up a bit with his friends. At his afterschool care, they have a snack and playtime (the boys usually do basketball or "hockey" on the pavement, then they have time for homework (with assistance if needed), and my brother pays a little extra for my nephew to do the Spanish classes that aren't provided during school hours (elementary school) but are an option afterschool. By the time Spanish is over, they are there to pick him up. He really does love it.
As another mom said, this is NOT the same thing as after school "clubs" as you mentioned in your post. In middle school I was in student council, beta, track, volleyball, basketball, and softball---those were seasonal sports and once a week (or 2?) club meetings. In highschool I was in Spanish club, yearbook, FCA, softball, soccer, track, and the debate team. Again, obviously not childcare but I would have flipped out if I wasn't able to be involved in my interests, especially my softball and soccer. Of course I loved it. These days there are "camps" that can pick children up at school. In Texas, I know my son's gymnastics school (among other things: cheer camps, band camp, etc) would send a bus to the elementary and middle schools to pick up children that were enrolled in that, and provided programs for the after-school crowd whose parents weren't back from work that early. I think that would be awesome as a childcare alternative if needed (and the child had a say in something he/she was interested in).
All in all, it depends on the child's personality, temperment, and individual interests whether they'll like something or not.