What is your experience with anti-bot tools?

Hello, everyone! I’m currently working on BotMeNot, a bot-protection scoring service, that will let you know how well protected your website is and also how effective your anti-bot tools are. I’m working out the details but, in short, it’s supposed to give you a score from 0 to 100, a list of requests and the outcome of the requests, and evidence of testing done. What I would like to know is whether you’re using any anti-bot tools, if yes which ones, and are you satisfied with these? This feedback will help me tremendously with the development of additional features for BotMeNot! Also, feel free to tell me have you noticed any problems with your website that could be related to bot attacks, or anything otherwise suspicious? Have a great day!