REVIEWS / ANALYTICS / OWNER INSIGHTS
🦉 WE READ 84 OWNER COMMENTS
PostHog: what owners actually say
Owners love PostHog's open-source, self-hostable approach and startup-friendly feature set, but query performance at scale is the elephant in the room.
What owners complain about
- Query performance scaling concerns SOME
A former Heap scaling engineer warned that query performance for individual users on shared clusters is a huge challenge, and was perpetually the main limitation on Heap's growth. This is flagged as PostHog's biggest upcoming hurdle.
- UI gaps for team-level analytics SOME
PostHog's own team acknowledged the UI for grouping and B2B SaaS team-level analytics 'isn't quite there yet,' though backend support exists. Multiple users have requested this.
- Maturity vs. established competitors SOME
Users actively compare PostHog to GA4, Amplitude, Plausible, Umami, and Statsig, suggesting it doesn't yet have a clear decisive edge over the field for all use cases.
What owners love
- Open source and self-hostable
Owners highlight that PostHog being open source with a self-hosting option is a key differentiator they appreciate.
- Well-suited for bootstrapped SaaS startups
One reviewer specifically noted the feature set is 'amazingly well-suited to bootstrapped SaaS startups,' including A/B testing built in.
- Clearer than GA4 and Umami
Users report feeling 'lost within GA and Umami' and find PostHog more navigable for making data-driven decisions.
- Strong feature set for early-stage teams
Reviewers praise the breadth of features—analytics, A/B testing, and more—in a single tool, calling it a game changer for their workflow.
Surprising patterns
- Several users run PostHog alongside Google Analytics simultaneously rather than replacing it outright, suggesting trust in the product but a desire to cross-verify during migration.
- GDPR compliance and data sovereignty (via self-hosting) were explicitly called out as reasons PostHog won out over competitors—this wasn't a minor detail but a deciding factor for some teams.
- A direct comparison with Heap's former engineer surfaced that the hardest scaling problem isn't infrastructure capacity but ensuring individual query response times stay fast as the customer base grows on shared infrastructure.
WHO SHOULD SKIP IT
Teams with massive analytics datasets or needing mature, battle-tested B2B account-level dashboards may find PostHog's scaling capabilities and team-level UI still evolving.
Synthesised from 84 real owner comments across 2 platforms. Every point is grounded in the comments — no marketing, no AI guessing. How we do it →