I have been watching some YouTube videos on this da sander. What everyone’s opinion on the Milwaukee M12 DA sander? Are they worth the money & do they do a good job? I know they make a few different ones.

Its just like any other Battery powered tool they are great till the Battery no longer will hold a charge then you go to buy a new Battery only to find out its cheaper to buy a new tool with a new Battery.

No I don't like Battery powered ANYTHING! but hey that's just me, It does have good reviews on You tube and on Google if that means anything to you?

I do like the size of the Vacuum hose I saw hooked up to one for dust collection.

What I would like to see some day is a Sander that operates off the Vacuum of the dust collector now that would be bad ****!

But for as much as I use a DA I cant see spending big money on one I do most all my sanding By hand for Blocking & finishing the only time I really use a DA is stripping and Prepping.
A lot of guys use them for prepping clear, I can see it in a production shop.
But I don't use a DA for clear, one Ah ****! and you got problems.

I have a rebranded M12 3" polisher. I love it for small, detail jobs. It's fast and I can contain the area I'm working on to just that which needs attention. But that battery is quite small and it runs out fairly quickly. Recharging is relatively quick and I have two batteries, but 3 would be better.

3 doors capacity. Only for a single pass, I'd think and not for heavy work. Anyway, using a DA for removing paint is madness while, for heavy sanding or paint removal there are much better tools, some even battery powered. Relying on a DA to level bog or primer is just asking for trouble - long straight, flat blocks are more effective.

So, I'd doubt it would be worth the investment. Even battery powered you wouldn't want to dunk it in a bucket of water when wet sanding, say when prepping blend areas. if you're a mobile technician doing small repairs then it might be useful, but you need to have air anyway, so why bother.

I see they have a 3" RO sander. I wonder if that might be better than my corded 3" Metabo. Certainly more convenient for dust nibs.... Nah, the Metabo makes short work of nibs with a 3" P2000 Trizact pad.