I was fishing Upper K Lake on Sunday night and talked briefly to a couple that were coming back from Rawson. Never really got into details or talked with them very long, but they caught some fish and neither looked like hardcore hikers, so I'm guessing the trail is in good shape.
I went up to Rawson last Thursday. Trail is in good shape, and crossing Sarrail is no problem.
Once the trail opens up on the falls, head down a bit. There is a very well made little "path" across the water (rocks and logs) which is very stable. You won't get your feet wet and you won't take your life into your own hands like the folks trying to cross right at the trail opening.
I planned my trip around the solunar clock and I had a fantastic day.