Kassia,
I have not heard good things about Valleygrow. I'm also leery of buying from e-Bay sellers because I don't recognize the greatest majority of them A few of the reliable sellers from whom I have purchased cuttings are no longer selling. With the seller, 7servant7, you don't get what you paid for.
Here are the names of a few Brug plant sellers that I know are reliable:
Liz, arghyagardens, does, but she doesn't sell cuttings only plants. She has a few for sale on e-Bay now. She sells mostly seeds.
JT sold his Brug nursery to someone, but I don't know what the new buyer has to offer or what the business is called now. I just noticed that JT has a few Brug plants for sale on e-Bay. He sells under the name: countrygdn.
Fred Sommers also sells plants and sells under the name sommergardens
I hope this helps.