Oh yeah, I use Instacast for my podcasts, and there are a number of other great podcast apps like Overcast, Castro and Pocket Casts.

I run an iPhone 5S with iOS 8.3 and a Mac with 10.9.5.

I never have to reboot my phone- the only time it gets a reboot is when I let the battery drain before plugging in, which I don’t let happen very often.

I use AirPlay to play podcasts from my iPhone to my Mac connected to my amp and speakers- it used to take a couple of times to connect reliably, but lately it’s been more reliable than ever.

I don’t experience slow downs or apps getting crashy, and I use my iPhone a LOT, and have hundreds of apps installed.

iOS 7 wasn’t so hot early on, but iOS 8 has been great for me.