OS X 10.10 Yosemite: The Ars Technica Review

Is iCloud Drive completely up to date? Is it in the process of uploading or downloading one or more files? If so, how much work remains? A menu bar icon like Dropbox’s or, at the very least, a spinner next to iCloud Drive in the Finder sidebar would be nice. These are not esoteric technical concerns. Knowing when it’s safe to put a laptop to sleep or leave a coffee shop’s Wi-Fi is an important part of any network-based file storage system.

Very good points. How much simpler everything would be if only Internet access was 100% ubiquitous.