OnlineCourseHost.com is true alternative to other course builders. The focus is on buiding courses with existing content sources. The setup is easy and clean. The page builder is functional, but yet limited (on their roadmap). What I like that course could be setup in not public env. Courses could be private, hidden for the masses or even public. Free or payable, course drip is also available. I use it for my courses. The plattform brings many functions such as newsletter, payments and others. Their support is exceptional and they collect good ideas from their customers;-)