I would start by saying that it is not your typical game but rather a 3D chat room with some great opportunities for artistic expression. Feral Heart is a place for the imaginative & open minded type of people because the game itself is reliant on the stories you tell with the tools it gives you. Unlike other games Feral Heart doesn't throw missions or premade characters & stories at you but rather an open canvas and blank script where you may take charge. It's a great place to let your creativity go with character customization, map making, mesh making etc. For others it's a fun place to just relax with some friends as animal characters or even make new ones.
Of course I would also explain that while most of the community is welcoming that there are some users who will look to ruin your mood or start trouble, but don't let that discourage you. (You can always report them ;3) The game is fairly easy to understand and it has a great, friendly, and active staff team that would be more than happy to assist you if you needed help or advice ever...
Overall it's a different experience to what most may be used to but it's worthwhile experience since you get the chance to explore your creativity, express yourself, learn new skills (with all the preset, map making etc art programs) & best of all, meet some unforgettable people & characters