Had trouble loading it, but loaded fine with the second try. I only played the free trial, but I liked it. I didn't need the hint or map, so I have no idea if they're any good. The trial was over very quickly, which suggest that the game is short, too. The HO scene was repeated, and there was only one in the trial version. If you don't like HO scenes, you have the option of switching to a match three game. The HO scene isn't very clear, but, for the most part, items were easy to identify. There are "observers" in each scene for you to find. For now, it's in my "might buy" list.
Update: Went back and reset the progress to try out the hint and map. The hint worked fine, but there is no map. Perhaps it's introduced farther into the game? It's hard to believe it wouldn't have one. The pinch screen works fine, and you can turn the sound off.
BTW, I find it very annoying that when BF has a new game now it offers it at $3.99 if you buy without trying, then ups the price to $4.99 for people who want to try before they buy. I really dislike these policies that were introduced when the company was bought by new owners! I won't pay more, and I won't buy without trying!