The Eurozone has seen zero net economic growth for about 8 years, and has 11% unemployment (13% without Germany). GDP has just finally started to get back to where it was in 2007/2008.
Germany's GDP is where it was in 2008; France is where it was in 2007, with France having ~10.5% unemployment.
Finland has been in an eight year recession/stagnation combination, with zero growth. Their unemployment rate has gone from 7.5% three years ago, to 9.5% today. Their household income to debt ratio has doubled since 2000, to 120%.
Italy has seen three recessions in seven years, with an unemployment rate of 12%.
Greece has collapsed.
Spain has 23% unemployment, Portugal is 14% (and those aren't the U6 equivalent numbers, just the headline).
The Netherlands economy hasn't gotten any bigger since 2007, and they now have one of the highest household debt levels on earth, which will continue to crimp their economic growth prospects severely.
Ireland's household debt ratio is one of the five worst in the world. Their unemployment rate is nearly 10%, which is a six year low.
Austria, Estonia, Slovakia, Slovenia, Lithuania, Latvia have seen zero growth since 2007/2008.
Simultaneously most of the Eurozone countries have seen a significant expansion of household debt over 10 to 15 years, as they try to prop up their standard of living with debt.
The only bump the region has seen economically since 2007, has been via currency devaluation and debt monetization, which has chopped down the Eurozone standard of living by perhaps 20% in exchange for a brief burst of low growth.
I'm not sure by what basis one would judge that it's working well at all.