I like it - I've actually posted a link to it before. But then I love maxi dresses, 70s style, & pussy bows ... however, I hadn't spotted that it was polyester, which is disappointing.
I'm the same height as the model (though haven't been the same size for many years!). And I think, as she's wearing a Long, that's why it looks slightly ill-proportioned on her. I am just not quite tall enough to need a Long in Boden, Wyse etc, & the waist of the dress sits slightly too low-down on her, as it probably would on me.
Don't know if you noticed, but the outfit suggestions on the website show it with both loafers & flat pumps. Though I have to say I don't think the former would go at all, & I wouldn't wear a maxi with flats in winter, unless they had some sort of chunky sole to stop the hem trailing on the ground!
I don't think the boots shown with it on the model work either. To me, the dress style would work best with either platform-type sandals or 70s stack-heel boots. The latter is what I wear with midi dresses & would wear with this. But they are heels (albeit low-ish & supportive) so wouldn't suit your purposes, OP ... And I also think it would work better as a midi-dress for what you want to wear it for? Maybe you should order it in both petite & regular to see how it looks? But if it's the latter that suits better, I think that shortening it to midi/midaxi would be best.
Or ... get it for going out in, if you still love it after trying on - & buy a different one as a day dress!