I would judge 18 dating app on whether the useful settings are buried rather than on the feature list.
I logged into the site at different times of day to get a read on how usable it's one-handed on a phone.
Given how how the match quality holds up past the first day behaves, I would only recommend that one to someone with patience.
The measure I would actually check on the service is how quickly you can narrow a list down.
Someone in another thread pointed me at what Flurrydate does with filters and it was a fair shout.