I'll have a CNR/AMR modem over a "decent winmodem" any day. Why? Because Winmodems live on the PCI bus and thus are system resource hogs, while AMR/CNR cards connect to a chipset internal modem engine that lives on a much faster connection.
Particularly, the Conexant (yes, Conexant) solutions included by ECS are nothing short of really good modems. Throughput and CPU load are just like they should be, and total system bandwidth use is a lot less than with any PCI Winmodem.
"Inarguably complete garbage"? Prejudice, yes. I've been using ECS and PC-Chips gear almost exclusively for the past seven years. Yes they've always been catering the budget and all-in-one sector - that makes their boards simple and cheap, but reliable they are.
One single warning though: Driver installation on an all-in-one board requires some concentration, since you can't add one thing at a time, sort its driver and then do the next one. You have to get everything right in one go. (To my experience, that's exactly why people curse their newly bought PC-Chips board ... they have long reacted and provide a well working driver auto-install CD.)