Rails users: What exception notification software do you use?

Question

I have seen Ryan Bates talk about exception_logger and exception notification. Are there any other good ones to consider? What do you like and dislike about these?

Also

Answer 1

I've used Exceptional in the past, their offering is quite similar to Hoptoad.

I was pretty happy with Exceptional, apart from the UI upgrade they did about a year or two ago. I thought the previous layout was better for tracking errors.

Now considering Hoptoad for a project that includes an iPhone component, as they list iOS among supported platforms.