I use a 13-27 Miche Primato Light 11-sp on my 2015 Chorus group. I finally gave in and got a lower low gear. but kept my favorite range (16-17-18-19) in the cassette intact. Miche was the only way to do this, with Campagnolo cassettes I could either have the 27 but lose the 18, or have the 18 and have a low of 25. I don't care about losing the 12, I've rarely spun out of the 53-12, so I doubt I'll spin out of a 53-13 any more frequently.
The Miche shifts just a well as the Campag cassette, but the 27 and the 19 are a bit noisy. I'm running a Campag 11 sp chain, my understanding is that they can be noisier than KMC chains on the Miche cassettes. My only other concern with the Miche is the 13 tooth only engages the freehub body with about 1/2 the cog thickness. I haven't had time to try and figure out why this is happening. Otherwise it works quite well.