I've used ardour in the past and enjoyed it but I initially chose reaper because I'm more familiar with it. I've been fighting some routing issues in reaper, I'll give ardour a try this week and see how it fits. Appreciate the work you do!
Ardour may well turn out to be less immediately well suited to whatever you're doing than Reaper is. But the point is that you could tune Ardour however you need to, something that even with its "endless" scriptability and tunability, you can't do with Reaper.
Don't be afraid to reach out for help/advice on our forums or IRC (the latter is best during daytime US mountain, in general).