If you've been disappointed with iTunes Radio's constant repeats and questionable song selections, on custom radio stations, you should consider trying it again. They updated the selection algorithm and it's now on par, if not better than, Pandora! After rating a few songs, the algorithm is now very precise with the songs it picks for you. No more repeats and it creates amazing mixes that you can just let play with very little skipping or "Thumbs Downing" after the initial learning process. The 'Hits/Variety/Discovery' slider's song selections are very relevant now too and I've found it surfaces a lot of gems that had me running to my phone to see which artist was playing so I could find more. I had doubts if they would ever fix any of these issues, like how Apple Maps has languished years later, but this latest update addresses almost all my complaints with the initial roll out.