I purchased the base arbor--we were doing most of the house (except kitchen and bathrooms, which we had previously tiled). We didn't love the 9 in width so we went with the base, but they have less options for stairs. We did the majority of the floors ourselves, except our stairs and landing with stairs. Our contractor for that was unimpressed with the option that we had purchased for the stairs. I think I would thoroughly recommend the base for very standard, no stairs--and the upgraded floors for very normal stairs, but a bigger company that can handle the pieces/ plugs for a landing. Price is great. IT was an easy install for easy rooms. I will also say that we had issues first with the sample order and then had to call for the flooring order... and again for the trim order.... but I suspect that is normal in covid and with direct from manufacturer... just to let you know what to expect.