This was purchased to take the place of a 32gb card that was about full.  The phone was only supposed to support a max of 32gb according to the documentation, but if you format the card in the phone first, it will see the whole card.  Even though the phone cant use the XC part, I still see no evidence of lag or performance issues.  I would recommend this to anyone who wants to upgrade a 32gb card in an Android phone.