Meyer has lower prices and lower shipping rates, especially when you order more than 15 chicks. So far I've had a good experience with my chicks from them-- I ordered 4 speckled sussex, 3 rare marans assortment (ended up being a golden cuckoo marans and 2 cuckoo marans), 1 silver laced wyandotte, 4 black copper marans, and 4 rare breed assortment (ended up being a barnevelder, delaware, buff brahma, and a buckeye), a free Meyer meal maker chick (unknown breed so far). Didn't have a single fatality. The first group is a month old now, but they called me the day of the hatch to let me know they'd had less BCMs hatch than they expected, and gave me the option to either be refunded, or to have them sent with the next hatch. I opted to have them sent from the next hatch, and added 2 more on for 6 total. There was an issue with my card (the one I used to purchase initially had expired, and I'd moved so I was waiting for the replacement to be mailed to me at my new address), and they were very patient and understanding while waiting for the new number.
I ordered all pullets, and so far, it looks like only the silver laced wyandotte is a roo (fingers crossed and knock on wood, everyone else looks pullety so far). All of them have been hardy and healthy, with the exception of the unknown breed chick, but I don't believe that's reflective of Meyer, as it developed at 3 weeks old-- it seems like it's just "one of those things" that happens with chicks sometimes.
Overall I have had a good experience with Meyer so far. I'll update as they get older if any more of my shes become hes, and if so, how Meyer takes care of me. I plan on ordering from them again in the future, provided things stay as pleasant as they've gone so far.