Addicting, fresh and fun, great stress relief, also comic relief!
There are many game modes: King of the Hill, Team Deathmatch, Last Team Standing and Team Objective. The latter is my favorite as the objectives are varied and fun and require teamwork and strategy. Bring some friends if you can though, for the most part people run around in total bloodlust.
Can be difficult at first- be sure to run the tutorial, and look for more advanced techniques on youtube. You can control your swings to try to get around parries and shields. Likewise you have to free form aim your own blocks. The system also allows for feints, shield bashes and kicks. You can also duck horizontal slashs then pop up and stab your oppenent before he has time to recover, Be careful though, and alert opponent will bring that sword down on your head!