Legacy Tales: Mercy of the Gallows: The artwork uses real historical settings, and the play is very much like a regular adventure game. Mercy of the Gallows has a pleasingly retro look and was obviously made with lavish attention to historical detail. The downside is that to move forward, you must find 10 gold coins in the environment, not in a separate screen, and a few of those coins are blooming hard to see. I had to use hints several times. This didn’t bother me because I usually dislike HO tasks in any form; however, I understand that some players have very high standards about ever hitting the hint button when looking for hidden objects.
Here are some other things you might mention.
Puzzle difficulty? Drop dead easy? Medium? Hard? Problem understanding the goal?
What types of puzzles?
How intrusive is the game with popups and slide-ins?
(SE may be very different from CE here)
Does the game use Dexterity sequences? If so, how many and do they have a skip?
Ridiculous hidden objects? -- like toasters and mobile phones in a game that's supposed to take place in the 1500's.
Are colors fairly natural or are they bizarro combinations of blue and magenta?
What style of hidden objects? I actually like the more traditional lists, or put the objects back, because there is more than one object you can work on at a time. What I dislike is one-at-a-time types where only one object is actually available to find. Some games are so bad that I've had to use the Hint for almost every object.
Voice acting -- good, OK, bad, absent. I prefer absent over bad. It bothers me when a character has a completely inappropriate voice -- like California girl voice for character in the 1500's. I don't expect an actual recreation of 1500's speech, but leave off the modern slang.
Maybe other people have things they look for (or avoid) in a game and could suggest more.