I'm Watching this course and love it. I have seen a few courses where Don P. mentions Solar Winds & MRTG as 3rd party monitoring solutions. I was wondering why PRTG from the German Paessler is never mentioned. I have been using it for more then a decade and find it a great solution for third party monitoring to fill in the gaps that AWS CloudWatch lacks. Has anyone else used PRTG from Paessler AG?