Austinhoney - 10:14 pm on Oct 11, 2013 (gmt 0)
No answer on Simavera. In the past I've found you often get what you pay for, or you get less than you pay for. Of the above mentioned, I like BigCommerce the best. Not perfect but so feature rich there's little you can't do with it and they don't take a cut of sales.
Every time I do a cart for a company I research again to see what's new and how these products change. So far BigCommerce has been ahead of the curve.