We stayed for 3 nights in July. The location is terrific, virtually the centre of old town Mykonos, footsteps from the action. We found the apartment clean and modern.
The apartment we received, whilst similar to the photos on the listing, was in fact different and was VERY small. My husband and I had a decent size suitcase each and we had to rearrange the room and shift the bed to be able to open them. The only mirror is a small tinted mirror in the bathroom, making it difficult to apply makeup etc. There are also no hooks for towels in the bathroom adding to the functionality difficulties with this place.
There is a good rooftop terrace for common use however it feels neglected. It has alot of potential with some styling and most importantly the addition of some shade.
As other people have mentioned also it is noisy at night (the flip side to being in the centre)! and the walls are quite thin so you hear everyone's coming and going in the wee hours. Also we found the wifi virtually useless.
If location is your main requirement then this place might be perfect for you however there are a few things consider if you are looking for more