Advantages of Eliquis or Xarelto over Coumadin?

Hi - I've been on Coumadin for 15 years and my PCP and hematologist suggested I might want to try the newer generation of blood thinners. So, I started taking Eliquis last week. I haven't noticed any changes but it does make me nervous that there is no way to know for sure if my INR is at the proper level. I realize that not having to get tested once a month is great in terms of convenience and I like that I don't have to avoid foods with Vitamin K. My question is - are there other benefits to taking Eliquis over Coumadin? The higher cost isn't too much of an issue since the copay isn't too bad with my insurance.