I've been playing around with RPG Maker MV. I was really reluctant to purchase it due to not being open source but I wanted to try it out. I used the Make a 2D RPG in Weekend book which I got in a humble bundle. I wrote a review of the book. My initial draft included some thoughts on the program itself but I decided to just stick to a review of the book. I plan to do a review of the program itself later.
My reasoning behind trying the program was mainly to see the features of the program. It is an impressive development tool. I'd still rather have on open source program of course.