I am still using the original Spectre Folio, the last notebook to rock a fanless Y-series CPU. Performance is a bit lacking occasionally because the Y but not having any fan noise is worth the tradeoff having the notebook in meetings. However, I would not trade fanless for ARM Windows. If Y is lacking there is no way ARM can do better in emulation mode.
The brown leather on the Folio has aged extremely well. I only wish it came with 16:10 display rather than 16:9. 3:2 might be the current trend but hardly anyone makes 3:2 desktop monitors and most of the time the notebook is used in docking mode.