Choosing A Online Training Host

I am currently developing multiple sales training courses using Storyline 2.  My next step is to select a firm that will host the training. My goal is to sell the courses and make the back end seamless. I want to leave the admin, collections, etc. to an outside vendor. I will integrate my website with theirs.  After some research I've identified LearningCart as a possible solution. I'd appreciate any comments on this firm or another that will help me in my process. Thanks!