Carlos and Rosa Perez were teaching at Carablanca milonga a few weeks ago, where I filmed them. I can't find a website for them, but there is an interview here.
Here they are dancing to Di Sarli:
Their dance to Poema is here, and to Pugliese (from the live 1985 album 'En el Teatro Colon') here.
I missed the class, but they seemed very genial, warm-hearted and modest.