More recently we needed a small adjustment made to the module and they made the change for no charge. Support has been really good.
Note that DT Register doesn't use the "ticket" type system that other components (or event brite) use, but it has fee fields and conditional fields, which can basically take care of most needs (including a new conditional option where you can hide fields for groups of X number, giving you the ability to hide things like fee fields when your group rates kick in). In addition, the developer will add features at a reasonable price and (if you are okay with it) roll them into the commercial release (the benefit being that you aren't stuck with a fully custom build, you can keep on upgrading as other new features are added-AND you help the community as a whole).
One of the newest additions is the ability to put registrants of certain events into groups-this allowed us to sell premium webcast access per event (older versions used 1 joomla group for the entire system).
New features are in the pipeline and this component will continue to get better and better. If you're looking for a solid event system with the option to purchase customizations at a reasonable price then look no further.
If you need a flexible slider, do yourself a favor and just buy this one.
If you're running a virtuemart store and you want more than just a generic search function, cherry picker is the way to go.
It's easy to fix that for the next version. Thanks for the input.
Whilst from your request on my site it took me only an hour to come up with an updated version on sunday (15th), your review needed 3 days to get approved.
Am I really that fast? :)