Whilst we didn't get to meet Konrad in person his daughter met us at the apartment to hand over the keys and explain how things worked. We had contact through the week with sms which was more than enough. There was a handy welcome pack in the fridge of water, bread, wine etc which was very thoughtful and there was tea, coffee etc provided plus cleaning items such as washing up liquid etc. Since we didn't cook in the apartment, we actually didn't need to buy much in terms of shopping. The apartment is close to the bay but the hill is a steep climb so you should either be in good shape for walking or have a hire car as we did. There is a washing machine which was very handy for giving our beach towels a rinse.
The apartment is very close to a well stocked supermarket and chemist on a relatively flat stretch of road so no issue if you need to stock up on items. There is a bus service that runs quite often outside the apartment but as we had a car we didn't use it. I understand publish transport is quite cheap so this would be a great option, especially as some times we had issues finding parking spots close by. The only other point to mention is that you need to remember that since you are staying in a residential area you should be prepared for your neighbours rising early for work/school etc.
On the whole the apartment is well equipped, very clean and is worth considering.