GLG is straight up great to deal with, lot's of orders and never a single problem. I've even run their in-house cookies strain and and it turned out great, not "Stellar" but for a cookies strain it was spot on when it came to flavor and buzz.
Right now he's trying to catch up with a couple of monster sales and his well water went out (Which really sucks in Mi in the middle of winter, that was me two winters ago and it's not much fun getting a truck out, if you can find one to do the work in the winter) so he's hauling water to his plants, answering a crap ton of e-mails and trying to ship out a bazillion orders. Normally he is quicker to respond to e-mails but this isn't a normal situation for him.
Best thing for everyone is not bombard his e-mail so that he has the time to catch up. Not that it's wrong at all to ask or to send e-mails, or to worry about it, that's perfectly normal. It's just that the more time he spends answering e-mails right now the longer it's going to take for everyone to get their orders.