Silo has only one main drawback: by the time you have installed it, they have released yet another version with new features. My guess is they're gonna make it in a bigbig way IF they resist being bought by one of the biggies. And if they don't want to be it all and do it all. I mean: their app should fit seamlessly in the pipeline of workflow. If they strive to replace the big-ones directly, they are doomed.

I have tried prudent planning long enough. From now I'll be mad. (Rumi)