Mine is working smooth for a week on AMD E350-M1-I: bare metal installation with 6.1.1 (downloaded directly from synology) + juno's 1.02a DS3615xs.
Had some troubles with ethernet after the update done keeping DSM settings.
Solved selecting the force install option and doing a clean install (you will lose settings of DMS but not data).
Update 2 installed by DSM web interface.