We bought the Super King size,
Very comfortable and warm, the pillow cases are a good fit on our pillows, and seems to make them more puffy (I guess by limiting how much they can stretch), which is really nice.
The duvet is fine, I have not found anything to complain about, plenty long enough for me (195cm), sometimes a duvet cover hole can annoy my feet (if its say buttons up, and my feet get caught on them whilst sleeping), but this is great so far.
Also doesn't flare up my allergies, so that's another bonus.