It is fair to say that the particular needs of your business may not align with general best practise - that's ok, at least during the development process we will discuss the relative merits and make an informed choice on the solution. We recently wrote an article that highlights some of the key do's and don'ts associated with the buils of a modern Ecommerce website.
We have written an interesting blog article/case study on the changes we saw as we upgraded a customers online store to an eCommerce solution that allowed them to deliver an exceptional experience for their customers.