Not heard the new version, but have heard both Blade One and Two many times. Once I compared the One with Kii BXT over a few hours and found the KEFs to sound sweeter and more friendly from the mids and up, even with the Kiis set to -3 dB from 2 kHz (-1 dB more attenuation than Erin had for his review of Kii).
Even though the BXT just blows the Blade away when it comes to
bass, both me and my friend preferred the Blade overall.
View attachment 225249
The Blade Metas looks to have some of the same mellow mid-tuning so I would expect them to sound very good on all kinds of music. My friend's ears in the picture are very fond of metal, symphonic metal and the like and found them to be little boring for that type of music compared to my DIY JBL M2's at home, but that could very well change if compared in the same room. To my ears the KEFs have only been rivaled by Grimm Ls1 and Piega Master Line Source at this dealer.