The development and technical details of F12 methods has been the subject of several reviews, and will not be introduced in detail here. From the perspective of modern electronic structure package users, carrying out an F12 calculation has become somewhat routine, and requesting an explicitly correlated coupled-cluster calculation is generally no more difficult than the equivalent conventional coupled-cluster method. Selecting some examples from the literature, by using F12 methods it is possible to obtain "quintuple-ζ quality coupled-cluster correlation energies with triple-ζ basis sets" , and basis set extrapolations of conventional correlation energies with quadruple-zeta (QZ) and 5Z basis sets have been found to produce results somewhere between explicitly correlated TZ and QZ (without extrapolation). While this level of performance may not be achieved in every application, in general F12 methods do resolve some of the basis set convergence problems typical of high-accuracy ab initio methods. There are also basis set extrapolation formulae that take into account the faster convergence of F12 methods. The ease of use of F12 methods has been enabled by benchmarking studies and basis set development that has produced sensible default settings to be adopted for general usage, such as the selection of auxiliary basis sets and the exponent of the Slater-type geminal.