I won't even try to pretend that I read this for any reason other than the bespectacled seme -- one of my favourite tropes that's all-too-rare -- but I have some thoughts on the story, too.
Happily, I really liked Toudou -- he was a truly decent guy, which is more than can be said for 99% of yaoi seme. But the problem was Satoru, or rather, the Satoru's attitude towards Toudou. It's pretty obvious that he's using him as an emotional replacement for the BF who dumped him way back when, and throughout the story he's completely hung up on the fact. The only reason he even considers anyone else is because the ex-BF is getting married while the new love interest is so persistent and straightforward in his advances. In fact, Satoru started to reciprocate Toudou's feelings quite literally in the last chapter, once the ex had married and become well and truly unavailable. It was pretty abrupt, and I found myself vaguely insulted on Toudou's behalf; he's too good to be anyone's replacement, though frankly the ex was a pretty okay guy himself. The mangaka tried to salvage this in the epilogue, but it seemed a bit forced, tbh.
And on the flipside, I can't imagine what made Toudou so suddenly devoted to Satoru, despite his continuous rejections and insults. In a way, Satoru was short-changed, too, since the only side of him we got to see was the "hurt by former BFF-turned-lover-returned-to-BFF and using faithless promiscuity as a safety net" side, which catered specifically to the image of a "cold-but-internally-fragile uke that the seme needs to save from himself."
So what's the final verdict? If you like stories which are more about "letting go of old love" than about "finding new love," then this is ideal for you. That said, it's more mature than most yaoi out there, which is a definite plus.