as of v3 ch15: satoru isn't even remotely a generic uke -- yeah, he may blush and be submissive to some degree, but he isn't a damsel in permanent distress who need rescuing, he isn't a spoiled queen, he isn't stupid, he's not a girlyboy nor a whining crybaby, he realises his shortcomings and works to overcome them, he takes action on his own behalf even if it takes him a while to muster up enough courage, and he does not forever protest sex, but instead likes it and shows that. that last part is what makes me enjoy him above all, because with the amount of sex that's in this manga, it would grate on my nerves something fierce if the uke made a huge fuss over having sex each time. i have gotten to the point where i no longer even want to read any manga where the uke isn't at some point enthusiastic about making out -- its ok to be shy and embarrassed, it's ok to blush, but please, admit that you like it!
the first part of this manga is lovely. i agree that tamiya is more generic, but at least he's on the considerate seme side of the category, and the combination of the two really works. i like that in general takanaga doesn't make a big deal out of the seme/uke thing though she follows the trope on the surface. these two are just adorable together; i rooted for them from the start. i also like that there's growth; both satoru and tamiya are changing, and their relationship is less prone to misunderstandings now. i wouldn't mind reading more about them if this trend continues, but if not, i'm happy with what i got.
the other couple -- well, i didn't care about them at first, but now that takanaga is fleshing out their background some more there's a chance i might come around. or not; it depends how long sagara remains in denial, because i don't like most tsundere, especially not if they behave more tsuntsun than dere. at this point i am no longer waiting with bated breath for the next installment (which is probably good for me, considering that those have slowed down to a standstill).