Photos from my iOS devices import automatically into my Lightroom library via Lightroom mobile. I do import photos from my SLR by plugging it in, but that would be the same for IPL too
All my photos get sent to Flickr from Lightroom so are available on all my devices and I also have a backup on Google Drive which happens automatically (I have an unlimited Google Apps account), and I can easily publish my best photos to 500px
If I want to share any photos with other iOS users using iCloud photo sharing, I can do that directly from Lightroom mobile without having to add them to my IPL
The way I'm setup now I haven't lost any of the convenience of IPL but have gained massively more control over my photos (particularly the raw ones from my SLR, including geotagging them). It's a shame because IPL promised so much but delivers so little...