They were excellent overall
Carpet Superstores didn't give me a cheaper product, but the same product for less--and the carpeting and vinyl plank are awesome and look great. They did an awesome job installing it, and it's exactly what I wanted. They were very helpful and their sales guy Ryan was great. He was always available for questions, even after I paid for the materials, and his responses were very prompt.
Their prices were one of the reasons why I started dealing with them, because they were lower than other places I had looked for the same material. They did my entire house, putting carpet in two bedrooms and the rest in vinyl plank. Their installers were excellent and did a really great job. They were really interested to make sure I was satisfied with it before they left. And, I liked that they showed up on time and cleaned up after themselves.