Many have purchased from BST, Fred has become the "go to" guy for quite a few recommendations on the forums now.

BST isn't the lowest price you'll find on ali express that is true, however when you buy from Fred, your buying a service not just products. I dont think you will have a problem, any will be sorted professionally.

I also dont think you'll have a problem buying from other sellers on ali express, I've purchased from many different sellers now and not had a single problem todate, I did have 1 package that took about a week longer than it should of BUT it did turn up AND was so much cheaper to buy it didn't matter!