Very friendly

It is very easy to manage. The DSM software is very user friendly and practical. You can remotely manage the disk, view all files on a home network (recognized by the Freebox or any device connected DLNA) on the internet if it is on, with a smartphone. Let's say the NAS is not recommended for those who expect a simple external hard drive but this model and this brand are excellent for those who know what it is.
The power is more than enough for family use. It is not noisy (it depends largely on the hard drives you have selected). Transfers are a little slow but is highly dependent on the quality of the network, so I'm not able to assess impartially.