Peppermint is good. Chai Spice...not so much.
I've had the Peppermint before and I rather like it, The Chai Spice was new and I wanted to try it. It was...not good. I didn't care for the blend and felt it was too strong on one spice in particular (cardamom?). That said, I've tried a handful of other varieties and I've liked them all. Some, I would say, are even exceptional.