It seems to work O.K. albeit for a relatively short time.
Once the power is down a bit it also seems to struggle a bit more cutting stuff.
I have been chopping up some old 2" roof joists (some nailed together to double up to 4") into 450mm lengths for burning.
The good bits - light and easy to handle, cuts well when fully charged.
The medium bits:
any serious use and it runs out of poke after 10-15 minutes. I was gaining on my 3 batteries (two from the drill, one from the saw) and two chargers. As the battery runs down the cutting becomes a bit slower.
The red LED line guide is interesting but not visible on the work piece in sunlight.
The safety guard around the blade does not swing up on contact with the work piece - you need to use the little handle to part lift it so the saw blade can engage. I don't know if this is a design feature or a shortcoming. It makes steadying the work piece with one hand and cutting with the other a bit difficult.
For light work, especially in awkward places and away from the mains, this seems a good little tool.
Buy at least one spare battery.
I finished the job off with my old B&D mains saw.
Cheers
Dave R