has anyone tried out gymboree's gymcrawler sessions? is it worth it to sign up for 6 weeks or more? have just come back from their open day, and attended a free trial class. seems fun but dunno if its worth shelling out that much money for 6 or more sessions....anyone who's had experience? plus dunno if timing is right yet. dd at 6 months is an early crawler, having started crawling at 5 months. but she's nowhere near as advanced as some of the 8 month olds i saw in the class. she was happy to just nibble at the equipment rather than crawl towards a ball!!!