W3schools website is a one destination for the developers who want to learn, explore and get new ideas about latest programming languages.
Information Depth : The website is filled wit lot of information that is related to web designing, you just search what is required and the information is before you. It is very well maintained site that starts with basics and go up to professional level of expertise.
Content Timeliness : This site has various contents in its repository, its is always updated with latest technologies that are revolving around web designing.
Design/Usability : It is very well designed website, any user can easily browse through various contents, you can check the examples of the excercise and you can have hands on experiance with the help of online coding tool.
Website Loading Time : website is optimised to run all the webpages very smoothly, you wont find much difficulty to load a web page and also transition from one page to another.
Overall a good website who have interest in web designing or who is willing to learn web designing.