I've found several games that I've really enjoyed, using Deep Dive. I've tried using the Recommender many times but I haven't found any that I've liked. It only seems to either pick popular games that everyone already knows about or indie games that look like they were made in a week by 1 person. With the Deep Dive, however, I was able to quickly find games that are very similar to my favorite games.

Without it I'm forced to go back to my old method of looking at the games reddit for a post of someone asking about similar games and sifting through the comments to try and find a decent game (I've found some games that way but it was tedious).