we loved kusadasi the people and the relaxed approach they had was beautiful id highly recommend as a travel spot with kids
I think things in Kusadasi is cheaper than in Bodrum or Antalya. Kusadasi doesn't have that many attraction in town.
One or two days will be ok. But I stayed more because I can visit Efes and other ruins easily.
Very relaxing with fresh air. Great place to serve as your starting point for trips to Ephesus and Pamukkale.