Time Stand Still is your basic point-and-click adventure. You go around picking up items and trying to figure out what you need in order to solve puzzles. As mentioned before, because the photos used to make the game are real, it's difficult to tell what might be something you can manipulate or use. When you're faced with a shed full of tools, buckets, boards, and numerous other items, it becomes quite tedious to have to carefully mouse over the entire screen. To make things worse, things that look like you should be able to interact with them don't always give you the option.
The photo backgrounds are the source of a different frustration as well. You walk in a 3D environment, but one step at a time. For each area, you can turn to look in 4 different directions. It might not be so disorienting if the pictures or map were adjusted in some way. Especially when you're in houses, you might turn and have the lighting completely change. Then sometimes you'll turn to face some strange part of a wall and look between a window and a mirror. The problem with that is that there is usually nothing of significance there, so it makes no sense to look at it.
It's ironic, because the opening screen for this game makes a point of telling you how intuitive this game is. I really couldn't find any redeeming factors for this game. I want to compare it to the frustration you experience in Myst, but that's really not fair to Myst (a 13 year old game.) That being said, if you're extremely patient, and you have the mindset to patiently pick over hundreds of screens one step at a time, you may like Time Stand Still.