I have ditched iPhoto as my archiving software and moved my +150GB of photos and videos to Flickr. I couldn't be happier. I'd also like to note that I share zero photos with the public, all my photos are 100% private or shared with family members/close friends.
Having said that there is plenty of improvement to go:
- iOS app (maybe it is also the case for the Android app) needs to improve (auto upload, better integration with iOS, etc). Recently I went on holiday and only used my iPhone to take pictures (over 5GB), it would be nice for an easier way to tag + create/add to set + upload photos and videos. By the way, where is the tablet app?
- Video is really really bad. Apparently Flickr doesn't support long video playback (and by long I mean 10 seconds or more - i think). Now a days (specially with smartphones) video is a big part of albums/experiences. Video needs to be permitted and nicely integrated within photo albums.
- Upload via web is nice, but a better Mac/Windows/Linux native app would go a long way for power users. Better upload resume, tagging, etc.
- Map view. Something is wrong with the new Flickr, it has a world map view, but it doesn't read/process any geo location from my pictures - unlike iPhoto which does this flawlessly. I need to drop one by one the photos into the map for these to be processed. I also have to say that the Nokia map could be better, I'd love to see Flickr using Google Maps. Has someone experienced this same thing?
- Better album sharing, a la Dropbox, would be great (e.g. allow friends and family to download an album as *.zip)
These are just a few things I would like to see in the coming updates.