  We present a Monte-Carlo study of the liquid-vapor transition and the
critical behavior of a model of polyelectrolytes with soft gaussian charge
distributions introduced recently by Coslovich, Hansen, and Kahl [J. Chem.
Phys. \textbf{134}, 244514 (2011)]. A finite size study involving four
different volumes in the grand canonical ensemble yields a precise
determination of the critical temperature, chemical potential, and density of
the model. Attempts to determine the nature of the criticality and to obtain
reliable values for the critical exponents are not conclusive.
