Hey Yani,
First, I gotta join in on the others here that after testing a lot of different calendar plugins I found this one to be the one suiting my needs best, good work!
One major issue though is that as some have mentioned, the custom page view of the actual events. That makes it clash quite badly with my theme template as the default one is, as I like it, quite narrow. But that looks really bad with your plugin. So maybe you could add an option to the event creation for selecting page template or set a default one for all events in the settings.
Other than that, great work!