This paper seeks to assess the impact of the EU on Central European Countries (CEC) whose politics are currently marked by a tendency to nationalism resurgence and Euro scepticism. The paper will also look at the consequences of the end of EU influence (negative conditionality) as a result of CEC accession. There is evidence that enlargement to the East has produced net benefits for the whole Europe. Nevertheless, the impact of the high demanding EU accession path on new members’ domestic politics is quite unexplored so far. What kind of correlation can be established between accession and the course of national politics? CEC willingness to reconnect to the Western and the Eu promise for membership significantly accelerated the candidates’ process of transformation and Europeanization. However, the hasty reconnection neglected some aspects of the regime change that remained unsolved while the very high transformation speed probably left many contradictions open. While the application of conditionality has certainly contributed to the consolidation of democracy it has also established a certain type of democracy that not necessarily reflects the traditional parliamentary form of democracy. The scope for EU influence over conditionality has grown over time causing a sense of frustration among the acceding countries leading, after accession, to a certain detachment from the EU.