I've ordered from Meyer's twice. The first time, no problems. When I went to order the next year, they said I had a credit with them, which puzzled me. I ordered and this time, several of the chicks were weak and did not make it. I didn't feel I should make an issue of it, since they had given me credit for the last order when I *didn't* need or want it. It kind of worked out in the end.
The chicks that didn't do well were porcelain d'Uccles. The next year I tried ordering those, and they turned out to have stopped carrying them. I guess I wasn't the only person who had problems with those. I don't know that I blame the hatchery, though. We've had issues with the porcelains being just less hardy and less long-lived than the regular mille fleurs.
I would order from them again, if they had what I was looking for.
I wouldn't order chicks this time of year in any case. We've had too many miserably hot days. I am trying to find hatching eggs to buy for a breed I am interested in, but eggs only - not chicks in August. If the hatching eggs don't survive the hot trip, it will be too bad, but not as sad as a dead little peep.