This is the first time I used a chain saw and is very simple: - The chain is tightened by the joystick. - We put oil in the tank (not too much because the capacity is small) - You plug and it works! What I find amazing is that it is not necessary to have concrete biceps to start the chainsaw! no gasoline smell either. No need to run a great looking tin at the station! I cut a trunk of about 15cm without any problems. If you cut down forest oaks it is perhaps not the most practical but for me that never move away much of an electrical outlet, it's perfect!
The emergency brake is effective immediately since the chain stops rotating.
Greenworks is a brand that specializes in garden tools with a zero carbon footprint. So no gasoline! just wired or rechargeable power tools.