Work at Analystics Company like Mixpanel Heap

Hi! I got reached out by recruiters from Analytics companies (especially Mixpanel and Heap.io). How do these companies compare against each other? Can folks who have worked in these companies share some insights on the culture, wlb, career growth etc? Both Mixpanel and Heap are similar series startups. On Glassdoor I see a very high rating for Heap. However I am not able to find enough posts on Heap.io as compared to Mixpanel. Anyone who work at Heap, can you share some insights on how it is working there? TC: 210k Yoe: 4 #tech #mixpanel #heap