I have used treestar a few times and though they are not my go to when ordering beans, I would order from them again. I had a question about packaging label last time I ordered thru them and they promptly responded to my emails. One of the seedbanks the seems to have a similar hard to get/rare beans is seed of horror/ horror seeds which I have heard negative things about. There is so many banks in the US now as well that you should have to worry about bank anymore, can't go wrong with neptuneseedbank, harvestmutual, deeply rooted, and oregoneliteseeds.com
I feel like when someone makes a post asking about a certain seedbank its usually because the seedbank in ? usually has really rare seeds available. When that's case, err with a side of caution, no matter where you are ordering from.