Price was not too bad given what it does.
Installation and configuration was very easy.
However, I have multiple Constant Contact lists and I found this plugin would only ever work on my default list even though the plugin gives you the option to indicate which list (Order #).
Additionally, the options for this plugin do not align with VirtueMart Options in 1.1.19 as VM offers various option for account creation. It just so happens that my cart is set to no account creation and therefore the plugin does not work with this setting.
Lastly, I've tried multiple times to get support and have yet to get a valid workable response from the vendor.
I'm rating it a Very Poor because given the price and it is not 100% functional and the support is absent.