I was doing a scan through recent posts and realised that you didn't get a reply to your follow up questions (sorry).
1. At present there isn't a way for a visitor to save a set of filters that they wish to apply to their newsletter list of events. It is a shared set of criteria - but you could always use multiple newsletters as an alternative approacj
2, There is a demo of the event registration features of RSVP Pro at
http://rsvp.jeventsdemo.net but not the reminders I'm afraid. You can setup a single reminder prior to the event (not 2 I'm afraid). If you wanted to try out RSVP Pro by joining the club and found that it didn't do what you needed you could request a refund and cancel your membership.
3. We have our own tags implementation - there hasn't been much demand to move this over to the Joomla tags system
JEvents Club members can get priority forum support at the Support Forum. As well as access to a variety of custom JEvents addons and benefits.
Join the JEvents club today!