We're very happy with Helpscout. Like the other poster mentioned, their API is pretty thorough, and the interface does a good job of getting out of your way. W

We're very happy with Helpscout. Like the other poster mentioned, their API is pretty thorough, and the interface does a good job of getting out of your way. We really like the documentation features as well; again, very thorough. The one thing we really wish was there is custom field support on customer records, but Helpscout does workaround this by letting you set up a webhook it'll hit to present more information inline.