First of all, it's not the same you are used to, like the solutions provided by Google,
In general terms the fact that is another web tracking tool is good, since you can have a combination of StatCounter and maybe Google Analytics and a couple more, just so you can get more relevant data.
The web solution seems to be kinda abandoned, it has been the same for years literally, and the support section, still has integrations with platforms that in my opinion nobody uses.
It can be good for the people that still uses the platforms listed on the install guides section but they are missing newer cms platforms.
Don't expect much from them, it's just a tracking tool, that's what they promise, that's what it does.
If you want real time tracking and experiments better choose a Google solution.
Every website should have some basic traffic tracking in order to allow you to take decisions, so I have been using a combination between Google Analytics, Quantcast and StatCounter to get as much data as possible.