I have the 18v subcompact Makita. I don't love it, but it works well enough. Not enough power to drive a tapcon, which is a big downside for me. Mine has a lot of run-out and the Chuck is awful. The Chuck waits till you're at the top of the ladder to let go of the bit. At least do it before you get on the ladder. I think this drill is the one that's going to have me swear off plastic chucks forever.
I only have 5.0 ah batteries (since they're the same size as the 3.0 and 4.0) so the size and weight is about the same as the first Makita drill I got about ten years ago. I will say it was totally worth the price. I think it was $50-60 new for the bare tool. In my opinion, the main reason to get this drill would be if you already have the batteries.
As for brushed vs brushless, I think there's something to be said about the longevity of brushed motors. They're really simple, no computer brain, and deal with dirt and water well. My Makita impact will turn ten next year and works as well as the day I got it (used). It's had a hard life too. It's been on site with me for 7 years 5 days a week. I use the back of it and the battery in the base as a hammer relatively often, it gets used in the rain, has been dropped off second story roofs more than once. Got the original brushes in it.
I've seen several brushless drills melt down on site, always seems to be some computer issue. The brushed drills I've put down all had failed chucks and the screw holding the chucks on were too seized/stripped/mashed to replace the chucks.