Your right, right now I have "Whole Home" now, but a unified recording list with a pool of tuners is a big difference in the way we record shows. Now we balance between 2 dvrs, have conflicts upstairs, run downstairs and schedule (we can schedule from our phones, but have no control over priority, etc).
I've never had this problem, but now that you describe the issue I can understand not loving that lol. I would think that "it depends" is way to look at it. I would think having redundancy via multiple dvrs, that way you don't have a single point of failure. Even if you don't record with your current dvrs, you don't have to start over with your playlists and it wouldn't tie up a genie tuner when your on live TV. In general my view is at worst if you left your dvrs in you could do every thing you can with clients and more if you want. But c31s are small. Great kitchen or behind TV receiver. Good luck choosing!