I have two UPS of this style and unfortunately I am not satisfied with the Legrand Keor. The main problems for me are:

1. During discharge, it makes a high-frequency noise which is annoying.
2. The duration, and I'm not referring to all the devices I have connected, but it should be able to hold at least a VDSL router. Unfortunately, it can't even last half an hour with just the active router (AVM 7530 AX).

In comparison to the APC Backup UPS 850, which I have in another part of the house, the APC wins hands down. Yes, the Legrand is more aesthetically pleasing and can be mounted vertically, but in terms of basic factors like noise and duration, comparing similar models and loads, just buy the APC. Lastly, compared to the APC, the Legrand:

1. Is more expensive.
2. Has fewer outlets.
3. Does not have USB-C for charging.

Regretting my purchase, especially since I already had the APC and was satisfied, but I wanted to try something different. Unfortunately, I made a mistake.