While I was perfectly fine with the TV ending, the EoE ending is my favorite. Actually, I sort of look at them as the same ending in a way: In the TV ending we're stuck inside Shinji's head and hearing/seeing all the static. In EoE we see what's really going on, outside of Shinji's head. I'm not saying that's what was intended, but that's how it works for me. And while some people find it a more depressing ending than the series, I find it just the opposite. I wouldn't change a thing.
As far as asking advice on wether or not to watch it, you may as well not ask. Half will tell you to watch it, half will tell you not to. The only thing you can do is decide for yourself.