Hi All, I need to purchase some more blood product transport coolers. We tested out the new and "improved" one from thermo but it was a disaster. It never held temperature and all the validations failed plus the zipper broke on it virtually the first day we had it (sigh). So I'm wondering what you all are using or if you have recently purchased any that are working well for you. Currently we have six of the hard thermo coolers which work wonderfully. I would like to get something similar to those. Thanks for your input!