My rule for mature women for serious dating now is simple: check how many profiles logged in this week on day one.
About 30 profiles into that one, the pattern around how well it holds up once the novelty fades became obvious.
If your area is thin, that one will not fix that, whatever whether the active count matches the claimed count looks like.
I would judge the app on how the match quality holds up past the first day rather than on the feature list.
That is my read on mature women for serious dating anyway, others will have had different luck.