A mate who is a builder has one of these and he's very happy with it. Download the owners manual to find out which nails etc. - https://www.makita.com.au/building-c...nishing-nailer
Have you got an air compressor or know someone who does? A quality pneumatic nailer is a lot cheaper, lighter, less bulky and usually faster too. The only downside is you need a power outlet and have a hose and compressor to drag around.
When I was in the market for a brad nailer, I ended up buying a small lightweight twin tank compressor and a Bosch nailer for the same price as an 18v skin. The small compressor can then be used for other things as well, I use it for a framing gun and just general use when away from my workshop compressor.