I had the Dali Menuet SE before the price increase and while they are nice and do well what they are supposed to do which is present a very holographic image with good note weight, they were too dark for my liking. If one likes a smooth (I could still hear some sibilance BTW) speaker and somewhat darker presentation it may be a suitable choice but the huge price jump was notable. I even sent the speakers back with a sizable restocking fee plus return shipping.
Aside from being a bit dark it was a pig for power and although my amps drove it, the lower powered one got pretty hot. Also drove it with a Hegel just fine but didn't sound any better. Perhaps a highly transparent and energetic amp would be more suitable?
Harbeth at least provides a couple of choices with their speakers with either a soft dome or metal for a bit different presentation and hearing an older type (don't recall model) it sounded nice especially with voice. While these small speakers scale up with power, I do not think the Harbeth would be nearly as difficult to drive for good results. Harbeth also seems to have better resale value from what I have seen.
In the end, I picked up a closeout NIB Dali Opticon 1 MK1 which I greatly prefer over the Menuet SE as it gives enough of what the SE did well without the dark presentation, so works better for me with music and movies as well as sounding good both in near field and further away, The Menuet SE loses its charm beyond 5 feet from the listening position. While the Harbeth was also intended for nearfield, I think the results from sitting further away are still good from what I have read from others' reports.
My choice would be the Harbeth and I almost did until I got the Opticon 1s which suffice for my needs. At 4 ohms, it is still an easy drive for my small amp and sounds fantastic especially with a sub added.
Honestly, in comparison at the time with an inexpensive Cambridge Minx XL against the SE, it kept up pretty close until you could hear what I thought was too subtle differences between them for the price disparity. With the Opticon 1, any differences and improvements are immediately heard. But add a nice finish, a Mundorf cap and exclusivity and it seems to sell at a higher price and for some a higher perceived value I suppose. Sometimes its true, sometimes not.
Take my experience for what it is, my opinion.