As usual, great KDrama casting. The business lessons were abundant with a good sprinkling of humor and romance without getting silly. Really enjoyed the leads, the male friendships were endearing and believable, the sibling rivalry was possibly the only thing a bit over the top for me but all in all a good series. Current and interesting subject matter and good settings. Another favorite character is the head of Sandbox. The business challenges were believable and the progress of the team was utterly realistic, I think.