Beg to differ.
It's free. I use it. I get all my email through Evolution, including email that goes to the Exchange server. Be aware that you might need to restart Evo for settings to take effect. There's also a bug where you cannot reply to a meeting request that contains an attached Word doc. But other than that, it's spotless.
-YendorMike
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
- Benjamin Franklin, 1759 Historical Review of Pennsylvania