After reading so great reviews of this extension in Joomla Extensions Directory I decided to give it a try.
The installation and configuration was very easy. However, I did have some problems on updating the extension using the auto-update button. Also, I was on some kind of paranoia trying to find out if my site was really clean - a couple of days after installation of the OSE Security Suite I found my site hacked again.
So, I contacted the support team and explained what was happening. The support team were very helpful and the found some hacked files in my site (they were there before the installation of OSE Security Suite so that's why I was hacked again!!). Also, they help me tune-in the extension to suite my needs and they got the auto-update of extension to work!!
Well, this is, by far, the best customer experience I ever had. I'm very happy regarding the product and support.