Too many variables to say anything, other than the basics that were listed in the article like mass, radius, orbital period etc. Venus especially is very similar to Earth in mass and radius, and even has a thick atmosphere.. The Devil's in the details though: it has acidic rain, temperatures hot enough to melt lead, and at equivalent sea level it's atmosphere exerts 300 times the pressure ours does.
I think the most interesting part of this is the fact that a planet this size was able to be observed. Technology is improving in leaps and bounds every year.