Not enough integration channels. We could not add Vimeo or LinkedIn. Also limited to only 3 types of display (grid, 3D cube and slideshow) all of which are not controllable. Also no control over what's displayed or how many items you can display from each channels. So lesser used channels get equal show as more popular ones.
And there support page (https://app.socialstream.io/shopify/support) returns 404 error with support email address.
They need an FAQ page which would may have saved us the $9.95 Gold Plan Charge - only used for 30 minutes - our fault for the upgrade but thought it might have lead to more streams.