Going to disagree with Rob on this one. i would put how it feels to use above almost everything else when it comes to dating sites.
Once I stopped worrying about the local pool, dating sites got a lot simpler.
Once I stopped worrying about coverage in your area, dating sites got a lot simpler. Once I stopped worrying about local activity levels, dating sites got a lot simpler. The part people underrate about dating sites are how alive the pool is.
Take that as one data point on dating sites for 50 year olds that are the most user-friendly, not gospel.