Service & Support: It provide a great service in Learning sector . I have done so many thing using this. There you can take paid or free version . In free version there have some limitation .you can learn few . There supporting system is good. You will get clear your doubt form there.
Information Depth: The lectures are great . there knowledge of the subject is supper . The way to tech with animation and real time example . You will get depth information that you learn.
Content Timelines: Timeline is very much organize . they showing percentage for informing that how much you cover till now . they also provide certification for that.
Design/Usability: it is very easy to use. new user will use with out no complexity.
Website Load time: It is very responsive site. load time and performance is very good.
Thanks