"I've been using this to cut down loft decking boards and it's been simple to use and reliable. The 4AH battery lasted a surprising length of time. The build quality is excellent. The built-in light is handy to illuminate the cutting area and the guide rail would be useful for straight cuts, although my loft joists are too skewiff for that. A laser marker like on the Ryobi might be useful. A word of advice - I saved about £130 buying the bare unit and then sourcing the battery and charger separately. I don't have the carry case yet but I suspect it won't cost me £130."