Lumia 1520 --- 2 weeks in

So i've had my Lumia for 2 weeks now, and I love it. I switched from an Iphone 4s, and am very happy with the decision. I have little complaints about the OS, but nothing major.

My biggest compliant about the phone is the Music section, especially in regards to audiobooks. Itunes had a special section for audiobooks, that would remember playback position. Right now i'm using Bard, but it is really buggy. Does anyone have any other suggestions of apps for me?

I also would like it if more social media options were available in Messaging, like Viber, WhatsApp, Skype, etc.