Unfortunately, my encounter with the Dr. Pen USA online store fell short of my expectations. The checkout procedure was excruciatingly slow, and the website was challenging to navigate. I was disappointed to learn that the products did not perform as effectively as they had been claimed to when my order eventually showed up. When I contacted customer support with my concerns, they were also unresponsive and unhelpful. Overall, I had a bad experience with the Dr. Pen USA online shop and cannot suggest it to others.