Hi Jeroen,
I can't speak to the Pro-Bel choice as we only implemented Ember+ - the results were awesome in terms of performance (you can move a slider on one side and see the other end reflect the change with virtually no perceptible delay - in either direction).
The effort involved was substantial, so it's not something we could share for commercial reasons.? We have been meaning to make the integration available as a generic Ember+ library but without access to any Riedel kit any more this was put on hold until we had some more.
Let us know (via support_at_ultamation_dot_com) if you chose to switch to Ember+ and we might be able to help each other out.
All the best,
Oliver
