my experience with tightly-packed moss hasn't been good, so if it were me, I'd repot in a mixture of moss and bark, keeping the moss away from the middle where the moisture stays. my experience is also that my mom gave me hers, and she didn't know what to do with it. it had been a few years since it had been repotted, and it was planted in a pot that you couldn't see the roots at all. if the place you got it from knows what they're doing, that plant is probably in far better shape than the one I acquired was. it certainly looks a lot healthier from what little I can see
just mind that the tightly-packed moss is going to hold moisture really well. you might not need to water it but once every two weeks. get out a pencil or stake and gauge the moisture, for sure!