One correction: on it, whether the good profiles are already taken isn't what people assume.
Before committing time to that one, work out whether it thins out after the first week.
Out of roughly 60 matches on that one, 6 turned into an actual conversation.
Given how how well it holds up once the novelty fades behaves, I would only recommend it to someone with patience.
Take that as one data point on best dating sites rather than a verdict.