Q:

Is the EAVCleaner Extension safe to Use on my Magento installation?

Project GitHub Repository: https://github.com/magento-hackathon/EAVCleaner
Has anyone used these cleaners before? I think this application is excactly what we need, but I am unsure how to know for certain that it is safe to run against my system's database. Has anyone had experience with this with a lot of data? 250k SKU with 5+ stores?

A:

You should of course check this on a dev shop before. At the time of writing, there are two important open pull requests you should merge yourself if not already done: #19 & #20.
You can easily check the commands with the --dry-run option. E.g.:
n98-magerun.phar eav:check:models --dry-run

You may also want to check out the cleaning script of Atwix.

