A game review would be highly subjective, however, it would also be useful for gathering thoughts on a game that the OP or readers may not come up with on their own. They could be useful community questions.
If you're just soliciting reviews for Game X with no additional information provided, that's probably not a good use of the site. BoardGameGeek already has a "reviews" section for each game, as well as ratings and comments that many people write for many games, and there are lots of other places that people can find game reviews; Googling for "[Game X] review" will usually find them.
If you want a review from a particular angle that you haven't seen covered before, that's acceptable. For instance, if you ask "[Game X] says ages 7 and up. My 10 year old son has [such and such mental handicap]. Will this game be appropriate for him?" or "[Game X] appears popular among hardcore gamers; how does it play in a family setting, with a few precocious children?", then those are soliciting reviews from a specific angle that may not be adequately addressed by existing reviews.