Personally do not like AdwCleaner. that's about it. It has downloaded a couple files labeled as vir. My only problem is that program. Haven't checked out the rest of the website. Perhaps biased, but just an opinion.
Toolslib is a Website with lot of softwares available for download and it helps developers to publish their softwares. This site is clean and safe. Few or no advertisements found.
Negative reviews are probably from competitors. Site never asks for any information and...wait, seriously? They're claiming AdwCleaner installed malware on their computer? You have to try better than that. :|
AdwCleaner is good but as for the rest check virustotal
Malicious files: 4
http://quttera.com/detailed_report/toolslib.net
Warning: Malware Detected On This Website!
Submission date: Sat Oct 3 17:35:05 2015
Server IP address: *****
Country: Italy
Server: nginx
Malicious files: 4
Great site there program removes spyware and toolbars others don't. But sometimes it removes extensions from chrome you don't want removed. I just reinstall them when that happens.
When my wife ran AdwCleaner v4.102 there were many other programs that wanted to be installed. Even though she said no to each, some of them installed anyway and because we said no, we never did get the AdwCleaner program. Update: Don't run this program as it put 31 PuPs on wife's computer (remove using Malwarebytes program)