Love it, can't recommend it

The plugin looks awesome, and I wish I could use it. But I can’t recommend it:
No integration with mail services like e.g. Mailchimp or Aweber, not even an exportable contact list. Plugin sets a link on the page which cannot removed. There’s no foreign language support. The contact information are stored on the server of ManyContacts, there’s no explanation what happens with the data nor any declaration how the data are protected. Seems as if ManyContacs is just another data collecting machine. The adjustability of the bar’s colors is very limited. There’s no adjustability of it’s size or position on the website at all. Finally, here in Germany – and probably other countries too – the law requires double opting in. For there’s no option for that, it’ s not allowed to use it here.
Conclusion: Great idea, gorgeously designed, not recommendable. What a pity.

(I just wrote the same under support – hoping, that the creators of the plugin solve some of the mentioned weaknesses of the plugin.)