I did the braid in the bottom of the cooler, and then I tried and stuck with a curtain panel in the bottom of my cooler instead. It actually made clean up EASIER. All you need to do is shake out and hose the bag off a couple of time.. If I go more than 45 seconds doing that..it's a lot...
The huge advantage to the curtain panel (which I used with bungees) or a bag in the cooler is no need EVER to use rice hulls, the ability to stir the mash to get efficiency up (it works) and freeing stuck sparges with a tug on the bag.
But then I decided I was tired of freezing my rear end off in the winter and built up a PID controlled recirculating (pump) eBIAB system.
It is not faster. Not at all. It's about the same amount of work. Cleaning is a little more because I added the pump. However, being able to do it all inside, at about 1/7th the cost of energy vs. propane, being able to keep mash within about 1 degree F, being able to step mash and even making decoction mashes (with a second electric small vessel) easier.. there are reasons to do it that don't have anything to do with the bag. It's much smaller, probably taking up 10 sq ft of floor space in my basement.
My beers have been a little better with the hot side control.
I really think most comments out there (and I'll get attacked for it) about "cleaning the bag" are by people who either never have tried it, or tried to clean out the bag three days later after forgetting it. Really it's on the boil side so shaking out the bag, just water and then if there's any grain matter next time you use it -- shaking it out dry before use, is all you ever need. I sometime get picky and will run it through the top shelf of the dishwasher but it's never needed.