It was my first Airbnb experience ever and it couldn't have been better than that!
I stayed in Heraklio for 3 weeks on a business trip with my priorities being location near the seafront and a reasonable price.
What I got was a wonderful host and a cozy little place to call home for these 3 weeks. Manos is very attentive and great in communication (if you are lucky his band will be playing in town and you will have the chance to enjoy a good concert ;)).
The apartment is in a very central location and fully equipped, a lot of nice cafés, restaurants and shops around for noon, afternoon, evening and night leisure activities. Some small improvements in the apartment are necessary but Manos is aware and will take care of them soon. Sleeping in the loft bed is fine but it presupposes using the ladder, so consider this if you are afraid of heights or you are physically impaired.
All in all: any time again, whenever I will be in Heraklio!