Helios is located in a very good place - close to old town and Chania bus station, a lot of shops are near by.
Appartments are clear and comfortable, we found every single thing we needed and enjoyed our stay.
There are a lot of space for two persons, the bed is very comfortable, a lot of space to store your clothes, electricity everywhere you need it and well equipped kitchen.
We spent some time searching for a car parking but it was an expected problem - you may simply pay for it or find a place several blocks away. Anyway, it's not a problem of appartment but due to its close location to old town.