This great extension is well worth the investment. Not only does RSEvents offer a wide range of possiblities, it's also being updated frequently. The makers clearly invest a lot of time in improving RSEvents, though it still could use some more features that are frequently standard in comparable (free) extensions, such as events with more than one date (such as eveningcourses), more flexibility in the way events are shown, the use custom fields, etc.
the support is great. Not always consistent in their respons and sometimes a bit (too) short, but they will get you where you want to go!

Very good extension. I found it hard to find a component that would warn me when a failed logon attempt takes place, and now I have!
Thanks for making this possible.
One thought though: the {site} parameter in the e-mail always tells you that the logon attempt was on the BackEnd,even if it was on the FronEnd.