My experience with proline was absolutely shitty.
He has zero customer service skills. And not only that, but he still owes me one bottle from my order that I have yet to see.
Oh, he is Johnny On The Spot before you send your money, but once it is picked up, you might as well kiss any social skills or manners goodbye. Completely ignoring customers emails, giving out fake tracking numbers, saying it was mailed yesterday, but then an hour later saying it will be mailed tomorrow, etc.. etc...
Why would anyone want to use him?