Come camping and hiking in Norway or Iceland. You'd be hard pressed to find places not covered by affordable cell phone data networks. Probably in Denmark too, don't know about Sweden or Finland.

That's what I thought also when deciding on Dropbox over Google Drive for my employer. However, pairing business and personal accounts isn't supported on Linux, nor have Dropbox committed to supporting it. So while they do provide a native Linux client, and you didn't write "linux support", I wouldn't be too surprised if that support deteriorated even more in the time ahead.