Good but doesnt replace desktop
Its a good app if all you want to do is review like and comment on pics or say see your feed.
The workflow to upload photos is not identical to the one on desktop. For example you cannot pin point the location or say easily give a title. It doesnt auto populate some of the tags so all in all. Its a quick and dirty way to upload a photo but not a true desktop app replacement.
Gre8bazaar about
500px-Photo Sharing Community