I haven't really read through the other replies.
But I run a mixed flock (half easy care, and half another shedding hybrid). I do like the Easy Care ewes, they are small and hardy, and obviously they shed they wool. But I think a lot of folk forget just how much variation there is in the breed, in any breed.
If you take your Easycare sheep, feed them cake, lamb them inside, keep sorting out their foot probs etc etc etc then you end up with just regular sheep, that happen to shed their wool. The key is to pick the right sheep from the right source, someone who culls hard for the right traits.
That way, you are genuinely buying some Easy Care sheep. There will always be work with sheep, but if you get the rights ones there can be a lot less.
I looked at a mob of 50 ewes today, not had any messing about done with them since . . . . . probably, well it has to be five months? Anyhow, all of them are good on their feet, and actually need to lose a condition score or two!
And they have not had a grain of cake, a mouthful of hay, nothing.
We breed some pure and the rest go to terminal sires.
Seen some nice Easycare hogs in lamb to a Charolais for £110.
Edited to add - If they did not like the cold, you've just got shitty sheep.