Windows 10 Build 10136 On Lumia 640

[Sedp23]

Has anyone ran this yet? How is it running on the Lumia 640? I've was of issues with custom notification sounds settings being removed and a few other minor quirks. Has anyone ran this yet? I have downloaded it but wanted to read more on this build on the 640 before I did It. I do miss the new notification center and email apps badly tho