Why not use push email?

[rtandon87]

I have been using WM for a long time. Love my Sprint Touch Pro right now. I have truely become a flashaholic. Well, one of the first things that I do when I install a new ROM is install the cab for Seven Push email for my 2 personal gmail accounts and 1 yahoo account. But, I see that a lot of people here do not use any software for pushing their personal email.

So, my question is:
- Do you guys just not have personal email setup on your phone?
- Is there a benefit of not installing Seven push email and setup your accounts using regular poutlook?
- Do you use something else besides Seven for push email? Anything better?
- Does is hurt your battery to have push email setup?