I've only dealt with B&B twice, and I was pleasantly surprised at the service. first time around was when the grow shop was still up, got nutes and seeds. all the seeds were from bulk seed bank. 5 didn't pop out of 8. needless to say, was pissed off, but chalked it up to school fees, then I read on here that they have a replacement policy for seeds that fail to germ, contacted them, didn't have the seeds we had originally ordered in stock, so they replaced it with seeds that were more expensive, only got 4, not 5, but was more than happy because it was better genetics, all of the seeds popped and had a taproot, but again, not having enough experience I managed to kill 2 of them. might be bias, but I love B&B.
to be fair though I haven't had any experience with another seed bank to compare it to, but I don't feel the need to compare.