For me he is like an epitome of transformation.
Rumors spread on the net about his sexual preference as attributed to his geeky look during his high-school days. Their question mainly is "Is Chan Than San gay?". Well as for me I have my own radar, you then be the judge, just smell it if there is something fishy going on. Nevertheless, whether he is gay or not, he's hot.
Conclusion: Gay or Not, he's hot.