Iv'e actually never used Incapsula before, but the component looked like a good opportunity to try out the service. The sign up is fairly eash, however it does require DNS changes (took me a few minutes). But once setup was done, I was really surprised with the service the component provides: you get a free CDN (my website is accelerated by about 50%! and the dashboard shows you all the threats and unwelcomed visitored that Incapsula blocked, as spammer, hackers, etc. I was also quite amazed to find out that 60% of my website traffic are actyally bots! Well done Incapsula!