My albums appear fragmented in many cases, even though they're not fragmented on my iTunes.
If I download a song, it doesn't always stay in the music app and I'll have to download it again every time.
I have only been able to dload iTunes purchased music to my iPhone 5S. I tried to transfer a couple of albums on a number of occasions without success. The albums successfully transferred to my iPod. Hopefully, this updated corrects this.