Has anyone tried affiliate marketing networks for SaaS leads?

I’m looking at partner platforms to bring in trial signups for a SaaS tool, but I’m not sure which ones send decent traffic. Has anyone had good lead quality or just a lot of junk?

For SaaS trials I’ve consistently seen the best lead quality from impact.com and PartnerStack (cleaner attribution + partner vetting), while “open” CPA networks often spike low-intent incentivized signups unless you hard-block incent, cap subIDs, and enforce postback-based QA. If you test, set strict KPI gates (e.g., trial→activation ≥20–30%, trial→paid ≥3–8% depending on ACV), require source transparency (UTM + subID), and pay on qualified events (activated trial/MQL) rather than raw trial starts to avoid junk.