The two of us stayed at Rania and Nikos' studio for two weeks and can only recommend it. Really in the heart of Heraklion with plenty of cafés and restaurants to choose from, great if you want to explore history and go shopping. The new bus station/ port is a 10-15 min. walk.
The studio is clean, with modern design, a bigger balcony and all the kitchen gadgets and dishes at your disposal if you want to cook some meals and snacks. We thought the studio was even better than some 4-star hotel rooms!
Rania and Nikos are really caring, hospitable and nice hosts willing to help you. They offered to wash our laundry in the middle of our stay, which we appreciated very much.
So, if you are thinking of staying in Heraklion, Rania and Nikos' studio is a choice you will not regret!