I like the concept, but $7/Month for the base plan seems like another subscription I just don't want to deal with (and a bit more than I would be willing to pay)
You should consider an annual pricing plan, and a lower rate. (I pay $45/year for evernote, and it solves a lot more pain points for me)
Again, like the concept, so please take this as the constrictive feedback it is meant to be.