I enjoy the game. I can figure out most of the puzzles on my own, or with the occasional hint. There are some very hard puzzles, and you can get hints for 100 coins each for two, then 300 coins for solution. That could cost you 500 coins if the first two hints aren’t enough to solve the puzzle. To replace those coins you can watch ads for 20 coins each. That’s 25 ads! But the game limits how many you can watch at one time. You get coins for each consecutive day you play which is nice, but the max is 70 for the seventh day and each day after. So, if you can’t solve a problem, it’s going to deplete your coins by 500. It takes a lot to recoup them. Two bugs have occurred in my game…..I had to spend 500 coins on hints and solution to a puzzle I had already solved. I was just trying to get a hint at where to go to next in the game. I did get reimbursed for those coins. Thank you for that. But, when I was watching an ad, to get coins, the ad froze and I couldn’t close it. I closed the game and returned to it several hours later and the ad was still there. I couldn’t close it, so in frustration, I deleted the game. I hated to do it, because for the most part, I enjoyed playing the game.