Without overstating it, Tera is the best mmorpg I have played in 10 years of playing games including Wow(for 6 years), EQ2, AOC, WH, Rift, Aion, GW2 beta. The combat, especially the melee combat is fantastic, the graphics are incredible, animations are best genre has ever seen (both monsters and players), dungeons are very good. Poster who dismisses it as an endless grind is cynical and dead wrong. Even my wife loves the game, and she was skeptical after being burned by AOC, WH, Rift, etc. We have 2 lvl 40's and love it.
Just make sure you have beefy computer to enjoy it to its fullest. We bought 2 new computers just to play this game after we started playing it and loved it. There is your endorsement.
Trust me, the game is freaking awesome. Period.