Simple and "USEFULL".
You want plusses? I give you plusses: click its open, no muss no fuss. Click on a date, you got the events from your calendar. Click off of it and it closes. Simple, isnt it!
Well, if you gotta have minuses, mine are ONLY personal. Ive got old eyes, so Id like to make the day numbers bigger, but maybe it will be possible in a future version . . Come on, guys its still really young yet, give it time. One more minus? Well, I use a slaved monitor for peripheral data, so itd be nice if I could move the calendar to that display and keep it open while I work on scheduling future events. I dont believe in "perfect", so I dont ever give 5 stars, but as is, this is a strong 4 stars for me.
KUMAGUMI about
popCalendar, v1.1.0