Features
Active Record
Show SQL queries, timings and bindings in the Rails debugbar
This is probably my favorite feature. It shows you all the SQL queries that were executed during the request. It's the same information you would typically get in the logs, but it's not entangled with other requests, and it's easier to read.
The queries can be folded, reformatted and easily copied.
It will also highlight cached and async queries with a tag.