Basically this is what you get, as the eventnews extension does simply that: It allows news entries to be created as "events" (some additional fields). So at first you get the same views you also have with news, but some additional fields.
One additional new view you can include in your page is the "month view".
Refer to the documentation of eventnews.
To add a Month View, you could do that by simply adding a plugin to your content:

All other things you might need are already there in news (filtering, searching, etc), and customization can be done using templates.
If you need further "event-like" features (like registration, recurring events etc), this might not be the right extension. Try for example EXT:cal or EXT:seminars.