First of all the location is EXCELLENT! We were right in the heart of all the action. There was a little confusion when we got to Mykonos, make sure you tell the taxi driver to drop you at THE NEW TAXI stand otherwise you'll be a little lost like we were.
The studio is extremely cute, it was myself and my girlfriend and good enough for us. The little apartment next door was very nice and a little bit 'fancier' I thought. But our studio had all the basics, I couldn't get the hang of the washing machine and I set it for a 9 hour wash, the next day I did better with only a 4 hour was. The shower is a little tricky as the shower head tends to roll and when you turn it on it sprays towards the toilet--not a big deal, just an observation.
We rented a scooter from the guys on the ground floor 20€ a day not bad and we rode all over the island. We hit at least 7 or 8 beaches.
The area was a little noisy at night in our first night (Monday), but after that it was fine. I would definitely reccomend Anna's studio.