Still Not Sure About This One

We have been using Rublon for about a year now. While it seems to work when it is turned on, there are definitely issues. Example: it is not set up to work with WPMU DEV support access. So every time we open the backdoor to allow support access, we have to deactivate Rublon. When we reactivate it a day or two later, we get an error message that says “Warning! Your account’s protection is disabled. Ask yor [sic] Administrator for more information.” So we send an email to support. The error message disappears a day or two after that with no explanation from Rublon support. This also happens whenever we have to deactivate plugins (including Rublon) to test for conflicts — which happens every few weeks. While we like the concept of two-factor authentication, we are still wondering if Rublon is the best tool to use for that purpose.