Or You Can Just Read Steam Reviews
Every indie dev at some point gets supermad about Steam reviews. However, 99 times out of 100, skimming the reviews on the game’s front page will tell you everything you need to know
And mostly read the negative one to see if there's any issue with the feature or lack thereof, or whether there's any performance issue or bug, anything you won't tolerate. Dev will tell you the stuff is good anyway. I rarely read from review site these day, and i find Yahtzee being very helpful in that he will be very enthusiastically tell you how some part of the game don't work, which is exactly what i'm looking for.