How successful is XRP?

Could you please elaborate on the success of XRP? I'm particularly interested in its market performance, technological advancements, and the level of adoption it has achieved within the cryptocurrency and finance industries. Has XRP made significant strides in terms of scalability, transaction speed, and cost-efficiency? Also, how does it compare to other leading cryptocurrencies in terms of these metrics? Additionally, I'm curious to know about any regulatory challenges or opportunities that XRP may be facing. Your insights would greatly assist me in understanding the overall success and potential of this cryptocurrency.