Their team is very helpful in answering any questions you may have regarding their product or service - I am always happy to speak with them when needed! They are also constantly working towards making our experience best possible for us as customers/users of this awesome software toolkit we use every day at work!! Nothing that comes up often but it could be because they're actively listening.
Do yourself some good by trying out vyriLL's services. We've been using it since last year so far everything has gone smoothly from an ease of integration standpoint which was one problem area going into trial phase of new client onboarding process.