[bryanmig]

After using an email-based homegrown solution that I thought was sufficient, I gave RayGun.io a shot. I use it for .NET exception tracking and I am about to wire it up to a Rails app, and a very very large Backbone JS application.

It is really quite good (at least for .NET). The management UI is great and does a very nice job of grouping duplicates, similar issues, etc.

I already use some dev tools from Mindscape (their .NET ORM, LightSpeed) and their products and support are top notch in my experience.

http://raygun.io