If you liked the original SP, there's a high chance you'll like the drama as well!
Yoshida Kotaro gives another solid performance as the main character whose real age doesn't really match his heart's (meaning, he's so young at heart that he'll always fall in love at first sight - just to be brought back to reality before each episode ends, LOL) and whose best quality is that, despite being initially moved by maybe-not-so-pure-intentions and by a pretty self-centered attitude (always thinking that the woman is interested in him, LOL), in the end he always puts the other person's feelings and needs first, showing the moral strength of an Edo-period samurai. Such a beautifully written character, indeed! (oh, and while we're at it: it's so refreshing to have a middle aged man as the main character! I wish there were more dramas like this!)
The supporting cast also does a nice job, particularly Takahata Mitsuki and Ogura Shun, who make up with (acting) quality to what they might lack in (screentime) quantity, giving a lot of depth to their characters - so much friendship transpires through those meaningful - and often silent - glances they give Kururi-san everytime he goes off on a tangent, convinced as he is that he's found his next bride-to-be.
The script is mostly very well-written, although some episodes are definitely better than others - as it's to be expected; the music is really nice and adds to the whole viewing experience, just like the direction and photography.
I think the only "problem" this series has (and that's the reason why I don't give it a "perfect 10") is that it's tremendously repetitive after a while; in order to avoid being bothered by this aspect, I'd suggest you do like me and dilute the watch over a longer period, so that each episode can feel "fresh" (I totally think this is NOT the series you'd want to binge-watch!)