They work well, but if something goes wrong with your seal to the master cylinder then they make a big huge mess. I have a 9 year old kid that I currently use for brake bleeding lol.

Those fluid extractors usually have an attachment for a bleeder. I have my Dad's over here at my house and I have found a few different uses for it, but I haven't needed to bleed any brakes yet.

https://www.amazon.com/dp/B0BFL3KJK...Y2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=