In short, the usual lenovo disappointment. The only benefit is low weigth (relatively), but that's not due to any particular efforts by lenovo, but simply because the screen and thus chassis and components are smaller and lighter.
Typically poor webcam, poor port layout, poor speaker placement (seem their fantastic 'speaker bar' from consumer yoga 9i never made it to the thinkpad line). Poor (thin) pen since at least yoga x1, around... 2014 (!). Repairability, which was one of the flagship features, is GONE. No word on whether keyboard retracts, I guess not, they killed off this feature around yoga x1 gen 3 (alongside sd card reader). And it's ironic how the keyboard is described as great. Perhaps it is, when compared to all current 'keyboards', but it's EXTREMELY poor in comparison to 'the' keyboards (and you'll know, if you're a long-term thinkpad user).
And then, colour - it's all very well to write about 'high quality' appearance when you review a fresh out of the box slab, but I've seen quite a few used x1 yogas over the last year, and the grey (or stormgrey) looks fugly (scratched, paint flaking off the edges, etc). Then I'm looking at my SERIOUSLY used x220, and sure scratches are there, but it's all black on black.
I think Lenovo just got lazy, they have exhausted all the ideas they inherited from IBM laptops, and they're just happy to be a 'metoo' herd follower rather than a leader of the pack. This is ok, stable revenue, etc, but from my perspective, lenovo has lost the edge over other brands, and they're no longer attractive to me.