Overall I think the stories were quite good, even though I struggled a little with the dialogue more often than not. I think that in the main story [Katase and Yuu's, the cutesy one] there was a little too much love and sweetness compared to plot and character development, plus the moment with the girl was all too predictable. Although I liked it enough to smile every now and then, I can't bring myself to rate it more than 6.
The second story [the stepbrothers] was cute. Not outstanding, just cute. I personally found the art style was better in this one than the others - but I'll get to that later.
I loved the premise to Aki and Keito's story [chapter 5 and 6], even if it could use some work around the edges. I love the violence, both physical and psychological, I love the jealousy-stricken seme, the vulnerable uke - it sounds cliché I know, but it really depends on how the author delivers such themes... again, what pained me was the "length" of all this. It was too short. It would've been a great story if the whole volume was dedicated to this couple.
Now the art. Oh, the art. Hanamura Ichika-sensei draws the most beautiful eyes (and hands, too). But the eyes, it's like they take over the entire page. And don't they always look like they're full of pain? Really, even when the character was supposed to be smiling, I couldn't shake that feeling that deep inside they were all hurting and miserable and in terrible pain. When I first read Kimi no Iru Sekai Shikairanai by the same artist I felt there was something odd about these eyes, but I felt mesmerised all the same. Now I love it, fufu.
So, that this is full of clichés, it's true; of a lot of quick and predictable solutions is also true; beautiful art -- check. But it's faithful to its title: it's sweet. And the third story - I repeat - is definitely worthy. 7.5 for that alone!