Conversation so far:
What kind of vocal style does Sakis Rouvas have?
His voice is best-suited to power ballads, his signature style due to his sensual tone.
What criticisms did Sakis Rouvas receive?
Rouvas' detractors have criticized his voice as average, or limited, contending that his appeal is based on image
What other criticisms are there?
Whatever the assessment of his voice, it has often been overshadowed by showmanship and appearance in the media; many preferred to watch him perform than to listen to him

Question: Is there anything liked about his vocal style?
Self-contained rewrite: Is there anything liked about Sakis Rouvas' vocal style?