I haven't tried Calengoo, but I adore Business Calendar.
I've been using it since it was in beta, and even the free version is fantastic. (I got the paid version for free when it was the app of the day on the amazon appstore, woo!)
It has every feature you could need.
The drag and drop feature thats only in the paid version is the greatest thing ever. Say you have the same event three days in a row? Instead of having to create it three times, you just go into week view, drag the bar over, and click copy.
I used jorte for awhile, and agreed that it was way too complicated. Also, the lack of repeat events killed me (maybe they have added that now, I dont know. Still don't regret leaving it.)
Seriously, go business calendar.