I always buy my parts from places I have purchased from before. I'll buy some cheap juice to try them out, see how shipping and communication is. If everything goes well, I'll spend a little more next time. First impressions mean a lot to me. I prefer to order from places who can send what I need in the time I need. If you're not sure about a vendor, don't spend much money there. See how they treat you as a small time purchaser of 1 bottle of juice before you spend more money.