Personly I like ASP.NET, i did work in php as well, but enjoyed working in asp.net, have one of best developemnt envoirnment , easier to use & maintain, you coding /development very fast. Even if look you at its web forms features like master pages, Routing, state management, sockets/web services/api (for cross platform or with other application/device communication), rich class library/builtin funcationality, error handling, server controls (specialy data bound controls), builtin security features, they are best you donot need to write much code Review collected by and hosted on G2.com.

Bad things about asp.net, its hosting is expensive you need licensed VS studio,SQL Serer, Windows Server etc, exception is there (to host on linux or other OS) but in most cases we have to host it on windows servers.

There are performance issues, when use viewstat, user controls/ postbacks.

Because extra code generated (rendered html), there are issues with jQuery & javascripts integration (specialy from code behind) Review collected by and hosted on G2.com.