So here is my review...
First, the equipment itself. I ordered the "Best Grand Slam" package from the link Drez posted earlier but here it is again: https://biabbags.webs.com/store ordering was no problem. I put the order in and paid via paypal. I then emailed the manufacturer my kettle dimensions and he even double checked that I did the measurements correctly which was nice. The product shipped within a day or two of ordering I believe. In any event it was quick so no complaints there.
If you make 10 gallon batches this pulley system seems rugged enough to do it. 15 gallon probably okay too. 20 gallon? maybe? I'm sure someone out there has tried it. The bag itself is excellent quality and fits my kettle perfectly as you would expect since it's custom made. The carabiners are a little cheap and the latch part has some sharp bits that like to snag on the drawstring of the bag as you take it in and out of the carabiner so watch out for that. I wonder if I could sand those edges down? I might try that because it kind of bugs me. For 10 gallons I think buying the extra pulley is a good idea.
Dumping the grain was easier b/c I didn't have to lug both the grain and my kettle out to the compost bin. Much nicer.
Cleanup was not challenging at all. I rinsed as others described in this thread and then hung the bag from the pulley system to dry.
So overall I'm pretty annoyed at myself that I didn't do this years ago. So many brew days could have been easier and nicer. But I made it eventually at least