I've just watched the first three episodes, and it was... good. I'd like them to be more episodic though, not describing the events of one single night. Still love Saber (and the true look of the Excalibur), still want to punch Archer.
Watching it after many hours spent in Mass Effect was really amusing. When I saw the Caster's monster, I laughed aloud because it looked like a Reaper. Then my mind immediately casted Saber as Shepard, Rider as Wrex, and Archer as TIM.