I've tried out every version since 8 (now it is 11) and while I have my own complaints, I do believe it to be a good product however wouldn't recommend it.
Back in version 9 and 10 I would sometimes have my downloads stopped (no detection, no nothing). They just stop after a while - keep in mind this is for files with around 100MB or more. Version 11 does not have this issue and I find it light on my system however when it detects a false positive and I tell it to restore/ignore in the future, I can not get it to run until I uninstalled Dr. Web. This did not happen in 8-10, only 11.
Protection is great, performance is good/bad for different people, and if you like control over what it does - it will frustrate you. On installation of Dr. Web it will not install it's own firewall for a reason (you have to manually check the box). It will ask you about network connections even on default. Best to just have Windows use it's own firewall. This could actually have prevented some of my download frustrations with previous versions.
If you wish to try it, they offer a free 3 months trial if you sign up (they only ask for email and alias (username)). First email will have the download link, second email (which should be automatic after proceeding to link in first email) will contain the key. I do believe there is a total of 3 emails. If you have storage with personal files I would recommend immediately setting exclusions for drive or folder so that Dr. Web won't go screwing around.
I can only recommend Dr. Web for a install and forget (if you do not use its firewall) and only use well known and trusted software. Even then to be honest I can't recommend it.
Many who have used/tried Dr. Web can also tell you it has very high RAM usage. 300MB to well over 400MB.