I purchased a set of the Erling Velvet Counter stools in the Ink Velvet.  I was worried about the brightness of the velvet.  Online they look like Cobalt Blue.  In person they are a very dark blue, almost black.  I wish they were a little "bluer".  
As other reviewers mentioned, the instructions and assembly were absolutely atrocious.  My daughter and daughter-in-law (who are both really good at putting things together) struggled to make sense of the instructions.    It took them about 2 hours to assemble each chair!  Crazy!
The Dutch Velvet has a substantial feel to it.  However it is not stretched tightly on the seat frame.  When you sit on it, the fabric sags like elephant wrinkles.
My island is fairly long so I really need another pair of these.  I will likely order just so I have 4 of the same.  I don't hate them, but I don't love, love, love them either.