Thanks for the kind words!
To be honest, I did work a lot on it, 6-7 years as a side-project and one year full-time. I think feature-wise userTrack is pretty comparable to Matomo (including some of their premium features that cost 400eur+/year). I also recently recreated the entire front-end from spaghetti jQuery to TypeScript+React+MaterialUI and implemented an auto-updater system. This means that I can now implement new features, fix bugs and distribute the updates to users very fast.
I am really glad that you like the landing page! I probably changed it like 200 times in the last 2 months (last change was 2 minutes ago). I still want to improve it (eg. some hero video actually showcasing the product, so you don't have to spend time understanding the demo).
PS: I hope that the BTC transfer was successful and thanks again for the comment! (jk)