I was a little skeptical in the beginning but so far things have been great. My eBay and Shopify store are averaging 6-7 sales a day. I'm currently waiting for my Amazon store to be verified so I can start selling on their.
I signed up with Bmb Matrix over 6 months ago and everyone was very helpful and followed through on what they said they were going to do. I would certainly recommend Bmb. They have extensive knowledge about selling online. I would like for them to communicate more! That's my only gripe.