Tested on a test server and I was pleased for a few minutes while I tested. Everything seemed good until I read the negative comments after install.
I uninstalled and verified indeed it does bloat your DB, and considerable email comes from the company. Now I have spam coming in from the email I used for the account.
I can not verify this spam is from them leaking my email, but I am inclined to think it is.
Plus I think this company fenagled the rules to get itself in this repository. It wont be long until they are removed. This is an open source repository and this plugin costs money.