I was just in Madrid and after a long time of reading about Meermin visited their shop and tried a few pairs. Bought an Elton last double monk in 8.5 and i must say it fits great, is not particularly hard (as i read about meermin in several posts) and looks like a million bucks (for the price).
I tried the Hiro double monk too and my 2 cents are
1) i didnt like the more rounded shape in relation to the Elton (much sleeker)
2) its quite roomier. I only tried the 8.5 in...