I dont have much time for this review, so i'll get to my point quickly.
Tri-Force heroes is not a normal Zelda game. Going in with that mindset will ruin it for you. It has a ridiculous story where the stakes couldnt be lower, and the game capitalizes on this by making the atmosphere silly. All in all, an average story. It plays almost the same as ALBW, meaning its easy to play even if youve never touched a 3DS before. The graphics are pretty good, the music fits the scenery, and it provides interesting and unique puzzles for the Zelda fans.
Into more specifics, it is a teamwork based game. And while some may be afraid of trolls, they are actually very rare, if there at all. The worst kind of player you can get is either someone who doesnt know what theyre doing or someone AFK. The Totem mechanic is this games niche, and it gets pulled off rather well. There are plenty of puzzles that involve it, but not so many so that you always have a totem formed. The boss fights are unique, and there are a few new mechanics aside from the Totem that you'll have to use, such as the balancing areas in the desert and sky areas, and new items to find uses for, as well as costumes and their unique properties.
All in all, for what it is, Triforce Heros is a good game that isnt mandatory, but very fun if you like the concept of a three-person co-op Zelda game.