anyone have this? I'm considering getting two for DD to replace most of her plastic cups. But there are some less than stellar reviews about the straw getting moldy, leaking and disintegrating (?!).

http://www.amazon.com/dp/B00849L4AE/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=2PCJCMYBDWJOF&coliid=I19G28AGF1QQBC&psc=1