we had a lovely time here for 8 nights. Kini was a great place to hang out and the beach just a short walk down the steps - we really liked walking over to Delphini which is about 20 minutes, but a very easy walk (in terms of up and down) we did it in flip flops but some people might prefer trainers.
But all of Kini was great - we ate in three or four places, drank coffee in several more and generally stayed on the beach there. We did have a hire car and really enjoyed exploring the island - although I'm not sure we particularly improved on Delphini or Kini beach.
The house itself was lovely, lots of space for a family of four and with AirCon and mosquito nets so you could choose how to sleep. I would definitely recommend.