I have tried many analytics tools in the past including the ones with the session recordings and found them either interfering with our website performance or just providing some useless data that you don't know what to do with.
Initially, I got attracted to the HockeyStack concept due to simplicity and the fact that they offered a cookieless solution.
The app has exceeded my expectations. It's super easy to define goals and funnels and track the data you are interested in.
In particular, I wanted to determine the percentage of customers who don't complete the checkout after viewing particular products and added them to the shopping cart and voilà, it just takes a few minutes to configure this funnel. Then you can analyze the customer journey and figure out what can be done to reduce the drop-out rate. Amazing!
And did I mention that the support is great? I had a few questions on a few occasions and got an answer through their online chat support within 15 minutes.