The Blue Yeti is not a horrible microphone, but if you don't use it right you will sound horrible. By the time you buy all the accessories to make it sound good, it loses its value.
The Blue Yeti is a mystery to me, and demonstrates the magic of the Internet. When podcasting was first getting started, someone made a post about it and how easy it was to just plug in the microphone directly to your computer. That is true, but the way it's designed it looks like it was meant to sit on a desk. The further away it sounds the more "room noise" you pick up. People who use this for gaming don't care, but for podcasters that is a problem.
Because it's more expensive and has a larger learning curve, the Blue Yeti is not a microphone I recommend.