Art: What I found interesting is that the animation company behind the anime was Madhouse(The company who also did Deathnote and Majin Tantei Nougami Neuro), so I kinda expected some good clear movements and good artstyle. Which I did find and was happy for.
Sound: This is where I think CSH shines. Chi's voice is done by Satome Koorogi(Who has also done supporting roles like Menchi from Excel Saga and Nina from FMA) so I was kind of expecting a sweet cute voice that wasn't too high pitched. Her voice is just adorable from her normal talking as Chi to when she plays around with other objects in the house. The opening I have to add is also quite catchy. Problem is that it's short, like thirty seconds short.
Character: Chi as a character overall is great. A young kitten curious of how life works in the apartment and the way of living in it is just plain cute. From mistaking her litter box for a bed to believing the word wee was her name. As for other characters there isn't much to say. The humans just are well there and set up the scenario for Chi's actions.
Enjoyment: This series is bound to make either laugh or just blow you away with it's cuteness. You really have fun watching this series and just can't wait for the next episode to happen and see what funny thing Chi does next.
Overall: If you want a series to just give you a good laugh or if you're a cat fanatic I recommend it to you. The only problem I found with it is that the episodes are only 2 minutes and 20 seconds(2 minutes and 50 seconds including the opening). But still it's an easy series to pick up and enjoy.
