I think it's a great game and I love it but 2 things make me rage : I couldn't stop the music right away, I had to wait to be in a level to be told how and then when I got back my settings were not saved so I had to do it again.
the level requierement to play some levels really annoys me. I wish I could try it without having to grind, and if I really can't beat it, then I'll choose to grind.
Even though I don't like the game for what it is I can't help to oppose the large majority of comments about not having to pay for games that I read here. You see some people spend a lot of time, efforts and even money to bring A games to the Kong members and it only seems fair to me that they look for ways to make a living out of their hard work ! I won't buy this particular game for a few reasons (including the fact that it's way overpriced in my opinion) but I would definitely buy an extention for GemCraft, Sonny or a lot of very high quality games that I played on Kong !
Support your devs buy giving them a few bucks once in a while : it's not a big deal for a lot of you and it can really make a difference on the quality of games that will be published here in the future ... my 2 cents :)