Lovely pool with bean bags as sunbeds - v comfy. But imagine it gets very crowded and difficult to get a spot in high season. There were just enough bean bags and space when we were there. It got a bit noisy and crowded when a large middle-aged American tour group arrived. Waiter service to the pool by pressing a buzzer on the bedside tables.
Rooms are lovely, simple, clean and with plenty of storage space. We were in a supreme family suite (four women sharing) and it worked well for us. The room was on the street side and it was a bit noisy with the windows open at night but with the windows shut it was well sound proofed (and later in the season you'd want to use aircon). Family room had large double bed and two singles in a cave-like room on the side - would be perfect for kids.
Breakfast was a good buffet. Fresh squeezed OJ, fruit (tinned), cheese, meats, various breads, pastries, yoghurt, pancakes etc. The usual you would expect and if you're lucky to get an outside table, lovely views across the beach and the bay. Lunch/evening food is good too with all the usuals.
Hotel is right by the stop for buses to Mykonos town (about 10 mins away). They go approx every 30 mins and Platys Yialos is the end of the line. So, no need for taxis.
The beach is lovely and there are some good (but expensive) restaurants and bars with sunbeds that run along it. For more authentic and reasonably priced taverna, walk along the coast towards Skorpios to Nikalos Taverna -