So one has to wonder why Center Stage picked the show to kick off its 2013-2014 season. The script isn't strong enough to stand on its own, and the Marx Brothers, being dead, aren't available to perform in it. If you cast actors with no resemblance to Groucho, Chico, Harpo, and Zeppo, there's no point in choosing this play over much-superior alternatives. If you do cast actors with a deliberate resemblance to the four brothers, you end up with the lowest of the theatrical arts: impersonation. Director BJ Jones has adopted the latter strategy, employing a fairly faithful adaptation by Henry Wishcamper. While Jonathan Brody and Bruce Nelson are terrific as Chico and Groucho, respectively, we never forget that we're watching impersonations. The result is a pleasant evening full of many chuckles but very few out-loud laughs.