Pros
Options to have flexible timing but not always possible. Resources to have learn new thing if your project timing allows you
Cons
Favourism in everything HR does not listen to you , they say whatever DMs asken him/her to say Employee are just resource which they need need to manage not humen being If someone is doing anything wrong with you and you report it in HR then HR will not respond back and may take months to even do first check up what happened They will try to find your fault first if they can If other person who is very old in company and working for very long time then you are doomed he/she may not be effected any how at most he/she may be moved to some other account or project. Onsites are for who are dear to management no body else skill does not matter , hard work does not matter and experience does not matter