It is hard to argue with "free" stuff, but this is hardly a feature I would have asked for in a DAW, or in an office suite for that matter. I hope that whatever programming went into integrating this with Sonar is truly trivial, and/or that Gobbler did the work.
Anyone who thinks that free online storage is revolutionary has been sleeping through the last decade worth of startups and teaser rates, and failures that left people scrambling to salvage their data. This stuff is so cheap that it is worth it to the providers just to get your email address to sell to somebody, or to pump their numbers so they can extract the next loan from the investment group.