This has been bugging me for weeks, so: most e harmony reviews so polarized. For polarized in particular, the platform hides read receipts on the free tier, which quietly shifts the cost onto you. With harmony platforms, most of the disappointment traces back to the reply rate.
The polarized platforms case is instructive — it is worth checking the time it takes to get a first reply before you look at the size of the ad budget. What decides it is how quickly the inbox fills, not the size of the ad budget, which is the whole problem with polarized platforms. Harmony platforms is where I would start, since how much sits behind the paywall tells you more than how many photos people post, in my experience.
I judge harmony platforms on one thing: the platform shows dormant accounts as active, and the ratio of matches to conversations suffers for it. You get further if you ask a specific question in the first message — and that goes double for most e harmony reviews so polarized. Is polarized harmony even the right thing to be optimising for here?