Yes, decriminalised, which does give the police some options if someone is taking the proverbial.
If you're looking for a successful model, that would be Portugal.
Agreed. Uruguay is often talked about, however it's available via restricted channels to citizens with their ID card - this puts some people off buying it officially, and they (according to a close friend who moved there from Poland) just buy it from the people sat outside the dispensary with carrier bags full of cheaper and better stuff.
In the UK it's chaotic, everything depends on the policy of the individual police force - for example, in some places, growing fewer than 10 plants is tolerated, elsewhere even possession can lead to an arrest.
In Poland, the current state of prohibition just provides an opportunity for organised criminals, and of course it happens anyway, as it always does.