Its a great online radio. I usually find its best to search by genres rather than an artist. If I type in, let's say Journey, the first 20 or so songs are awesome, then it goes downhill and plays really bad stuff. So now i just put in 80's and it gives me a better playlist of 80's music.
I guess I'm in the minority here, but I don't much care for Pandora. I listen to EDM and it tends to be a little behind with new music in that genre.
I love EDM! I use Pandora, and I enjoy the fact that there is a lot of old school tracks all on the EDM channels. However my problem with Pandora is that the search is too vague. Not really a fan of getting Skrillex tracks on my Spor channel. >_<