The presentation will deal with the substantive rules of the proposed Common European Sales Law (CESL) and its potential advantages compared with the Vienna Convention for Contracts for the International Sales of Goods 1980 (CISG) and, to some extent, the EU consumer acquis. It will focus on the parties’ rights, obligations and remedies with respect to sales contracts and the balance that the CESL strikes between sellers and buyers. The CESL provisions have been seen by the EU Commission as ‘the core of the CESL,’ which, when scrutinized, will convince critics of the advantages of the proposed CESL regime. The aim of the presentation is to put the EU Commission’s (unofficial) prognosis to the test and to estimate whether in fact the core of the CESL would or should persuade the users and target audience of the CESL’s value, that is, consumer organizations, business organizations, legal practitioners and academics.