I strongly recommend that everyone give Path of Exile a try, especially if you're a fan of the Diablo genre. The slightly hardcore approach to the well known genre makes for heaps of fun in terms of flexibility, character customizability and innovation Diablo 3 players could never even dream of.

There's not much more to say, other than not letting the skill tree scare you, give it a go! It's also a great example of how a company can implement a proper free to play title, without falling into the traps of giving paying customers and advantage gameplay-wise.

A couple of my videos showing various test-builds (unlisted videos as I'm just showing them to friends initially)

Then I've recorded my main character doing some of the endgame maps, this is an exceptionally tanky build I've made for soloing purposes primarily.

http://pathofexile.com/ just go, sign up, have fun! Or grab it from Steam, it's a good game!