Just wanted to say I bought the Ciao and the refills (yes they can be refilled). Another way to cut Copic costs. I found this way I could have more colors. The only difference is the size of the barrel so I have to refill more often.
And I use an airbrush with them. I got the right PSI compressor at Harbor Freight for around $50 instead of the huge price Copics have for their own brand. (never used the can of air - didn't seem economical with the learning curve).
I have around 150 copics +refills. 144 are Ciaos. They are my first choice coloring medium as I like the intensity of even the light colors.
Oh and FWIW I am another happy Oozak customer.
From experience I bought two 72 packs and I wouldn't buy them this way again. I love all the colors, however I have to move my markers in and out of my cupboard and the 72 case is heavy one handed.