I've got one for a while now ant haven't had any issues with it together with Z2M. It's stable and has a great range. The PoE is nice to have for me. (source: https://www.reddit.com/r/homeassistant/comments/1az0cdq/how_do_you_like_your_smlight_slzb06m_poe_zigbee/?rdt=51221)