The Anniversary Update is on 52% of all Windows 10 phones

Windows 10 Mobile install base is now 14%
Windows 10 Mobile continues its slow growth and the operating system is now on 14% of all Windows phones, according to AdDuplex. Although the growth of Windows 10 Mobile is accelerating each month, the install base is still low with Windows Phone 8.1 staying firmly at the top with 77.3%.
The report also notes that Windows 10 Mobile Anniversary Update is already on 52.4% of all Windows 10 mobile devices, which is a significant achievement considering the fact that carrier-locked phones started receiving the update a few days ago.
6.3% of the Windows 10 phones are running the Redstone 2 build released just recently to Insider Fast Ring, and the rest of the models are still on the 10586.xxx builds (version 1511).
Have you upgraded to the Anniversary Update and what do you think about all small tweaks and improvements?