Difference of opinion.. a lot of people who keep bettas as pets would hate to see the fish in the tiny bowl with no heater like the avatar :)
It's similar to my set up - working on a barrack system for my breeders, but currently my breeders are in .33 - .66g kritter keepers inside large, clear bins filled with water + heater. Have 32oz deli cups for juveniles. Anything bigger (such as gallon glass jars, etc) are saved for growing up future breeders.. big tanks are saved for growing out plants, juveniles, pet bettas.. sometimes I'll toss in a breeder into the plant tank to help fertilize the plants, etc.
It can look bad with so many small containers.. but since these fish need special requirements to live safely, and to prepare to breed.. using smaller containers is almost a must when you have so many fish to grow up and separate.
The water seems good, is heated, their containers looked clean.. it's not a bad set up. I've seen worse, so I have to applaud billysurf for giving them a good home while growing up, breeding, etc :)
Breeder so I have too many to count and too many named to list here!