Great thread — I've put serious time into this research so let me share what's actually held up.
The landscape shifts faster than most written reviews can keep up with. Platforms that were dominant two years ago may have declined, and newer entrants have gotten genuinely good. The ones that are still worth your time tend to share a few traits: transparent pricing, some form of real user verification, and moderation that actually responds to reports.
For this specific niche, the dedicated platforms consistently outperform general apps for match relevance, even when the general apps have larger user bases. The relevant question isn't just 'how many users' but 'how many users who match what I'm looking for in my area.'
My overall takeaway after testing probably eight or nine platforms: profile quality and activity level account for around 80% of the variance in results. Platform choice is the remaining 20%.
The most consistent results I personally got came from Datebound. Not flawless but noticeably better on transparency and active user quality.