Well directed, well staged. Thrilled watching it, except when the stars changed from young to old, it changed the entire persona of the show. In general when we like to continue watching a show, that happens with an interest we eventually grow. I am not an expert but I think Changing the lead roles could not do any good but loose some interest. I really fancy all the stars in the season 1-2 more and may have enjoyed more if they continued playing older roles as well.
Over all definitely good job done!