Putting aside snarky sentiments about its inevitable shutdown: pretty neat, although as others have stated, it seems a little too minimal. I imagine if your life is already on Drive that this could be pretty useful. I especially like the Android lock screen widget that lets you add stuff directly from the phone (mentioned on their blog)

Regardless of the product you use, searchable cloud-synced notes that you can quickly access are a life changer, even if they're just text files. It's like direct memory augmentation; I can't imagine why anyone wouldn't want to have it. "The weakest ink is better than the strongest memory" and all that. The trick is to make a workflow for yourself that allows for writing stuff down now and finding/organizing it later. I find OneNote + SkyDrive works pretty well - it ties you to the proprietary OneNote format, but the features you get from it are powerful, and as long as you have the client software and a place to put the files (preferably on the web), no one can "shut the service down". Perhaps I'll give this one a try though.