It's playable, but may need to reduce quality to increase FPS. I try to use all defaults first and I found the 25fps playable, but just barely. For me, it stays very solid at that 24-27fps. All sound was fine; pretty good through my headphones. The Shader Building is painful and can take between 20-70 minutes. There seems to be a wide range of times being reported for that. I left mine plugged into power and it finished in about 30 minutes.