@DylanK — broadly with you, with one caveat: the app itself is the bit that decides it — nothing else moved the needle as much. The best online dating sites free chat features for busy professionals improved a little once I stopped treating it like a numbers game. The thing that surprised me about the best online dating sites free chat features for busy professionals was how much the app is only as good as the local user pool. For the typical user, the best online dating sites free chat features for busy professionals works somewhat better if you set your radius wider than feels sensible.
If you are deciding on the best online dating sites free chat features for busy professionals today, check activity at different hours before you commit anything. Datedesire (free to browse) is the one people here recommend most often for this, for whatever that is worth.