3 stars: Fun but annoying. Many of the puzzles rely on plurals so if you have an available S, be sure to try using it at the end of words as the puzzle will often reuse the word in a plural form. The ads are very obstructive as often the X does nothing, if it does show up, and opens your browser instead. I would buy the add-free version but this type of practice betrays my trust.
5 stars: The high the level, the more challenging it becomes, a word that would fit is not what the developers chose, so you have to keep trying. I LIKE IT.... GOOD JOB! There is a down side to the game, once you go over a thousand games it won't give you all of your spins for extra hints or if it does it will usually land on very low numbers.
5 stars: Cool game! You get to choose between a high number of play languages. You get to find out interesting facts once a level is complete. And, most importantly, if you make a word that's technically correct but not part of the puzzle, it's added in a list, so you can see the combination and avoid trying the same one again - kudos to the genius who added this!
4 stars: Nice game. But there is a bit strange built in vocabulary (at least for the Russian language), 'cause it doesn't know many words, which can be made up and doesn't accept them. Or even better: it can accept or decline the same word in different puzzles.
4 stars: Way too easy at first, but there haven't been any ads so far so game play goes quickly... Hopefully, it will get more...