Photos for OS X uses some other neat organizational tricks. The Albums view automatically highlights photos from your last import and your favorites, along with buckets for different kinds of images: panoramas, slo-mo videos, and time lapses, for example. On the whole it’s a much easier system to navigate. And since the software is completely brand new, it’s super fast, even with a large library of photos — at least, it was on the new MacBook Pro we tested it on.
Photos is tied closely to iCloud Photo Library, Apple’s photo backup product, which is also in beta. iCloud Photo Library stores your first 5GB of pictures for free; after that, you’ll need to pay. Prices start at $0.99 a month for 20GB of storage and go up to $19.99 a month for 1TB. My Photo Stream, Apple’s sometimes-confusing free service for storing and synchronizing your last 1,000 photos, will continue to exist independently of Photos.