Poor stay. Both bathrooms had feacal matter on them.
Unit generally dating quickly. Walls marked and power points coming off wall. Main bed was highly uncomfortable, made noise with slightest movement and dipped in the middle, significant enough to impact sleep.
Offered discount on future stay, after VNG admitted they had located a fault with the bed. Useless as no further travel planned to Istanbul. Did not provide partial refund as would be fair and reasonable.
VNG then selectively ignores messages. Poor in every respect.