Is it safe and reasonable switching and using Nimbus?

Is it safe and reasonable switching and using Nimbus?

I am testing Nimbus for a month or so now. And I do love the editor and how to work with it. This is something which would make me leave Evernote without  thinking a second... But there are other topics which keep me reading here in this forum and which are worrying me...

  1. Several threads dealing with  speed problems when opening / working with notes. And some of these threads span over more than one year...!??
  2. Data handling and data protection. Apparently the same thing. Topics that are being discussed over long periods of time with no real solution so far it seems
I would be strongly interested in reading from the support staff and getting concrete announcements on such threads and topics. Is Nimbus really actively working on
  1. Data Protection
  2. Improving the speed of the handling of notes

Is it safe and resonable switching to Nimbus?