Finished the first two seasons, and they were SUPERB! ..... I'm on S3 right now, and episode 10 ... with Toume's brother asking the three sisters to talk to her so she can come home early (to her brothers). He was soooo freaking funny, this is like epic of all epic episodes.
So far, each episode was 10+ enjoyment level on my end. I haven't had a fill in episode, as each one had its own unique path and distinguished itself from the previous episodes. I like the love polygons that's going on between the characters. It's nothing like cliff hangers as School Rumble, more of comedy and slice of life put together. Chiaki and Fujioka are just soooooooooooooooooo cute; I don't know how to put it into words. But taking Chiake's personality into account, with her half-sleepy eyes, short temper, grumpy attitude and cute appearance it does kinda affect the viewer when she smiles and wants to keep Fujioka to her self and drags him around and sits in between his legs ... man that's just raw.
So yea, I'm gonna go back and finish up S3. Really great slice of life series <3
Edit -- Forgot to mention for Season 3, I stopped watching Chihiro's releases on episode 5 and quickly switched to Nekomimi. Advantages were its in 720p, better quality, encoding, timing, translation and I somewhat like the Karaoke better in there, too (yes, I watch the Karaoke from start to finish!). The downside is Nekomimi had 1 to 0 typos per episode, so far a total of 4 or 5 typos from episode 6 to episode 10.