Tiger on Broadway

My second cousin, Rajiv Joseph -- I'm sure we wouldn't know each other if we were trapped in an elevator together -- wrote "Bengal Tiger at the Baghdad Zoo", Robin Williams' Broadway debut.  I'm not sure if it's still in previews or if it's had its official opening yet.  It sounds like it's attracting enough audience to be successful, based on what I saw in the NY Times.  Here's one glowing review, and another, well, not so much:  Zap2It couldn't wait for it to end, but the LA Times thinks it's brilliant.