These arn't too bad for fatigue. Though can't turn them up as long as I can the Omni 150's.
I like how the Klipsch look on my stands. But I also like how the Omni's look on the desk. Klipsch take up less desk space. I like the stereo separation and imaging I get with the Klipsch up on the stands. But at the same time I like the soundstage of the Omni 150's. My coworker likes the Omni 150's more as they fill the room better. Klipsch definitely have a "sweet spot"