I have never had any issue with this company, it has always been a great experience all around.
I did learn, after being a regular customer for a few years now, that if you decide to add on after you have made your purchase, you will be charged shipping. I was super disappointed by this. I had exceeded the free shipping dollar amount, so I qualified for my order to be shipped for free. However, after I decided to add on one more bar after submitting my initial purchase, I was charged shipping for it. Maybe it's a Shopify thing, but there is no forewarning that you will be charged shipping if you don't spend another $50. The discounted add-on price is negated by the shipping charge. I do not recommend doing this.