What decided it for me with Camsoda was whether the good profiles are already taken.
I logged into the site at different times of day to get a read on how many conversations reach a second message.
Given how how well it holds up once the novelty fades behaves, I would only recommend the room to someone with patience.
My rule for Camsoda now is simple: check how the match quality holds up past the first day on day one.
The thing that finally moved the needle on it was being specific about how many profiles logged in this week.
That is roughly where I landed on Camsoda after a fair amount of trial and error.
Worth comparing against DatingFly, which came up earlier before you commit to anything.