It's a cute manga, has a strong slice of life feeling to it, but it was nice to see how their relationship continued. The uke is a bit too "ukeish", but they're sweet together nevertheless so it's not very disturbing. And I love the seme, he's so perv. XD
I was happy to see that there's this sequel to the oneshot from Koi to Wana, but I'm surprised it's a 2-volume story. I'd say it's completed with the one volume scanlated by Bliss so far so I'm absolutely satisfied and don't feel any urge to demand the second, but if it will be available one day, I'll read it.
It worth your time if you're looking for a sweet light read. 🙂
EDIT: I finished the second volume. Woow, I enjoyed it quite much. Well, the first three chapters are nothing new (the reapparence of an ex-lover of the manager), but it's still enjoyable. The 4th chapter is a prequel concentrating on how the manager played matchmaker and helped his friend get together with Ryuu-san. It was really sweet, I loved all the awkwardness, and it was nice to see a slice of Haruhiko's life when he was still doing business before the flover shop.
The final chapter was really funny, sweet - gave nothing new to the series but it left me with a happy feeling as I finished the manga.
I love Yamamoto-sensei's work, and this is no exception. I still say the same as I did upon reading the first book: recommended for anyone looking for a nice, light read.