Broadly agree, though I would weight how much data leaves the app higher.
After a few weeks on that one the only question left was whether you can hide your location convincingly.
My first week on the service looked promising; by the second I was only really watching how well it holds up once the novelty fades.
Unless you are in a major metro, expect whether the active count matches the claimed count to be the limiting factor on that one.
Whatever you land on, test dating sites for people for a week before you judge it.