I have a colony of discoid and they are super easy to keep. I started with 20 adults, 4 males and 16 females. That was about 6 months ago. I am crawling in them now. I feed them vegetable/fruit puree for the wet gutload with all kinds of veggies ground in and cricket crack for their dry gutload. I have a plant heating pad under them that keeps them at 85-88 degrees fahrenheit and they require little to no care. They have produced super fast for me. The nymphs take awhile to grow to adulthood but you will have food for every kind of cham/lizard you have once the nymphs hare half grown and above. The babies are small enough for pygmy chams and the adults are large enough for meller's and parsons. My giant waxy monkey frogs love them and my goliath frogs love them as well. My bigger dart frogs love the freshly born ones. I actually prefer them to dubia as I believe the nymphs are juicier, however they are quite a bit faster than dubia if dropped. I haven't lost a single adult in 6 months and I neglect them quite a bit. Keep it dark and pretty humid and they will thrive.
Justin
EDIT: They didn't seem to like leafy veggies too much for me, thats why I started grinding them in with a piece of orange and such because the love the sweetness of fruit. I haven't fed them anything high in protein and they are eating lots of calcium filled stuff and have not died like my dubia if they get too much calcium.