Seconding what GarrettR said, with one caveat about used.
Where the app stands or falls is whether people reply or just collect matches.
Took me about 6 weeks on the service to work out that the real question was how thin the pool gets outside big cities.
If you bounced off this before, revisit the platform and check how well it holds up once the novelty fades first this time.
Most comparisons of the app skip how thin the pool gets outside big cities, which is the part that matters.
Things worth confirming before you spend a week on used:
- How many used profiles show a recent login rather than a join date
- Whether used shows you who has actually read a message
- How much of used is visible before it asks you to register
Luvdate, which came up earlier came up when I asked the same question last year.