I used Downcast for years particularly for its ability to import my audio books.
My brother switched to Overvast when it first came out and used it for his podcasts and Downcast for his audio books--not a model I was interested in mimicking.
Then after a recent update I was rereading a detailed review of all the features in Outcast. I was pleased to see that as a patron you could upload personal (e.g., audio books) content via the web interface.
I wish I could have switched sooner.
Overcast has an amazing interface, is easy to use, and has great features for playing back at accelerated speeds.
I couldnt recommend more.
Update: My commute recently when from a total of two hours per week to over two hours per day! Overcast made it easy to add and prioritize all the podcasts my cousin-in-law and brother had been recommending to meet for three part two years.
Thanks Overcast!
gedeyenite about Overcast, v2.5.7