"I tried Sales.Cart (ComCity), BVCommerce, Storefront 6.0 (Lagarde) and settled on AspDotNetStorefront PRO. I had a very bad experience with both Sales.Cart and StoreFront. These guys say they offer a 30 day money back guarantee, but in the fine print they don't offer this on the web hosting, or support so I really had to fight hard to get my money back after trying their solution for less than a week.
I'm glad I didn't settle for that, because I have much more control over my pages and the data with the AspDotNetStorefront solution. I've had to learn SQL and .NET a little bit more than I knew already, but these other carts mask you from what's going on with your data. So now my site is live and I know it backwards and forwards.
The other most important thing for me was support. AspDotNetStorefront has been incredible. It seems they are always around, which is great since I seem to always be working on my site. It seems I never have to wait more than a couple of hours to get an answer from them.
Per their recommendation I went with EDT Hosting. Having started a hosting business in the past I am really impressed by their operations and their support. They seem to share the same support credo as AspDotNetStorefront - Always around and have a solution within hours.
All in all I am a very happy camper. And, if you add all of it together (the hosting and AspDotNetStorefront ) it's still cheaper by 20% - 40% than these other guys. And I feel I'm getting a much better solution.
At that time I was trying to get over $2K back from the other cart guys and here AspDotNetStorefront sent me the actual full product prior to the sale. I thought these guys have balls (excuse the expression) about there solution. After a few days I got the site to work and sent them the money.
Zupgrades.com is live and it proudly and confidently runs on ASPDOTNETSTOREFRONT PRO!"