To me maybe the greatest appeal of the 10 gal corny is that it is physically/ mechanically the simplest stainless option. No moving parts, no valves, it's just a big keg. Sealed, sanitary, easy to clean, move around, etc. and uses the same fittings, tubing and such I already have for kegging.
Rob, how do you clean it, CIP with a pump or use a brush to get to the stuff on the bottom? I would worry about getting my elbow stuck in the opening since It is roughly the same size as the 5 gallon version.
I mentioned this as I had a friend in the Mansfield Brew Club who wanted to remove beer stone from his 5 gallon corny. I told him to mix up 1 oz per gallon of Star San and use that to remove the stone. He put his arm in to clean the bottom and was afraid that it would get his elbow stuck in the opening and would have to go to either the ER of the local EMT's to get it out of there. Obviously, he did not get it stuck in the keg. The mental picture it painted had me rolling on the floor laughing!
Goose, I use Craftmeister Alkaline on mine. Cold water, no scrubbing needed.
I use essentially the same procedure as for 5 gallon kegs. I remove the lid, posts, and gas tube for separate cleaning. I fill the tank with PBW or whatever to soak and toss in the spear tube. Since I can't pick it up and dump it like a 5 gallon corny, I use one of these and can rapidly direct most of the liquid to my adjacent floor drain, then dump the rest: https://www.homebrewing.org/12-Simple-Siphon-Kit_p_7914.html
Rinsing is easy with a hose.
If I have to get in and scrub, I picked up a floor drain brush (like a giant bottle brush on a mop handle) from a janitorial supply store. Scrubbing is not normally needed, but might be with a beer stone remover (like 5 Star BSR or, better yet, a dairy milkstone remover,) these products just loosen the beer stone and some mechanical action is usually needed to remove it. (They are more effective than Star San IME.)
For sanitizing I fill with iodophor and drain with the siphon. I see no need to waste gas pushing it out, I need air in there to start fermentation anyway.
All in all, minimal lifting and no extractions by the fire department!