+1, from a guy who has anesthetized >30,000 patients for them. They truly save lives. Lots of them. If it's your time to get one, guzzle the prep (which sucks), crap your brains out, then go in and possibly save your life. The procedure is simple. You get hooked up to a bunch of monitors, then lights out, lights back on again, fart your brains out, then go home. Easy-peasy.
Now imagine if you do your prep and find out your GI doctor is back-ordered for months.
Who know, everything else seems back-ordered.