I got it up and running already! And it has everything I wanted. Plus, I could configure the dashboard and the widgets easily, something that I never really managed to do with Google Analytics in years, because of the sheer complexity and the circuitous interface.
Piwik has „life view“, which is as useless as it is fun, especially if your own content blocker, blocks your own tracking when you test your Analytics…
Of course there is all that other stuff GA has as well, like browser versions, devices, OS and so on. Maybe not in that scope that a big corporation would need, but I need I a widget that shows me visitors sorted by „city“, because visitors from Brasil or Letland might be nice to have, but I am hoping more for visitors from my own city to hire me to build their websites.
Now, there were some bumps on the road, but I could figure things out. Like finding the correct path to the directory to where I uploaded the Piwik folder. To find that out, I checked a php error logfile which my hosting company supplies in their customers area, plus some well educated guessing.
Obviously you can find out the path to an installed file or folder using an small PHP script, but what if you need the path to „/”?
Also there seems to be an issue with some hosting companies and php 5.6, so that Piwik gives an error saying something about „php_value always_populate_raw_post_data -1“ . Whatever - when you switch to PHP 7 the error is gone. Also the file size of two tiny files weren’t correct, so Piwik warned me about it. So I ftp´d the two guys up agian and everything was fine.
Once you have the whole 43MB of the Piwik installation uploaded (which takes hours) and managed to browse to it, Piwik guides you thru the installation process in a nice and understandable way. Also Piwik is loacalized. It is such a releave to have something like this in your mother tongue once in a while.