The special for Imouto sae Ireba Ii. is a good encore to the show. I enjoyed the characters of Imouto sae and the the specials are all about their interactions. The eechi elements of the show are present, but no where near as bold as they were. The art design and quality is superb for a show of this length. While not a technical masterpiece, it's more than expected. Opinion wise, the chibi designs are cute, the voices are great, and the animation that is packed into these specials is great. Overall, I recommend you watch the special if you enjoyed the main show.