I have never heard of that exchange until now, I wonder why they are shutting down although it says they might be moving onto other projects, a shame to lose an exchange.
At least it sounds as though as it's done on good terms. They said in the email that they hope for "support in our future projects," so maybe they have something else up their sleeves. There are hundreds of bitcoin exchanges on the market, so I don't think losing some here and there is too bad as long as it's on good terms (not being hacked, shut down due to regulation, banks, etc).