Ggreaves---Do you backpack fairly long distances in those EVA boots? They look great if you're living in a wall tent or a tipi during the winter but terrible for daily backpacking up and down mountains in the snow. One word: CLUNKY.
Attachment 43760
In fact, how many winter backpackers have I seen wearing such things in the mountains of NC and VA and TN? None. Maybe backpackers in Alaska and the Yukon use them. Otherwise they're great boots for keeping your feet dry in slush and snow at -10F---as long as you're not backpacking 10 miles a day every day.
But heck, maybe the OP wants a replacement for his clunky Sorels and this fits the bill.