And I'm back.
All Difficulties
Set divisor to 1/4, then timing > resnap all notes. You have a few that are slightly unsnapped here and there and this would be the best way to fix them all. Double-check to make sure nothing sounds off after doing this.
A few sliders end earlier than they maybe should but it's not a big deal. Comb through and change them or don't. It's up to you.
You'll notice in the following comments that I sometimes mention moving things 1/2 beat over or something. There are probably a few of these I missed. I don't comb through things through the editor that much when I mod. If I missed any, I'm sure you can find them easily by playing the map a few more times.
01:30:026 (x) - A little odd that the little 4-hit drumroll here isn't mapped. Maybe continue the ending slider or add a bouncing slider or a stack or something.
Easy
00:44:272 (1) - move a beat later, then end 1/2 beat sooner.
00:49:809 (1,2,3) - might trip new players up? Moving 3 left of 2 would be enough.
00:55:439 (2,3) - move these slightly right on the timeline so they land on the red lines.
01:06:674 (1) - move 1 beat later, then move the endpoint slightly left to the white line.
Normal
00:44:272 (1) - move a beat later, then end 1/2 beat sooner. Just like on Easy.
Hard
00:05:864 (6) - move 1/4 beat earlier.
00:26:053 (1,2) - move these two right on the timeline to the next white lines.
00:37:647 (3) - sounds a little out of place, I dunno.
Insane
Some might complain that this is overmapped. I like it though. "Your Mileage May Vary"
00:14:051 (2) - This stack (and others like it) seem a little out of place. They're not really problems but I can't say they won't be brought up in any future mod posts you might receive.
00:20:864 (8) - move 1/4 beat later.
00:21:269 (9) - end 1/4 beat later.
^ there are quite a few more like these. I'm not going to go find every one of them for you, though.
01:27:433 (1) - consider removing some of the new combo markers from this stack. that thing will be a little annoying to play in tag coop. not that anyone has to map with coop in mind, but...
Conclusion
What you have now is an ENORMOUS improvement over what you had just a couple days ago when I last modded this. Well done. You'll only get better from here.
Here's a star. You earned it.
All Difficulties
Set divisor to 1/4, then timing > resnap all notes. You have a few that are slightly unsnapped here and there and this would be the best way to fix them all. Double-check to make sure nothing sounds off after doing this.
A few sliders end earlier than they maybe should but it's not a big deal. Comb through and change them or don't. It's up to you.
You'll notice in the following comments that I sometimes mention moving things 1/2 beat over or something. There are probably a few of these I missed. I don't comb through things through the editor that much when I mod. If I missed any, I'm sure you can find them easily by playing the map a few more times.
01:30:026 (x) - A little odd that the little 4-hit drumroll here isn't mapped. Maybe continue the ending slider or add a bouncing slider or a stack or something.
Easy
00:44:272 (1) - move a beat later, then end 1/2 beat sooner.
00:49:809 (1,2,3) - might trip new players up? Moving 3 left of 2 would be enough.
00:55:439 (2,3) - move these slightly right on the timeline so they land on the red lines.
01:06:674 (1) - move 1 beat later, then move the endpoint slightly left to the white line.
Normal
00:44:272 (1) - move a beat later, then end 1/2 beat sooner. Just like on Easy.
Hard
00:05:864 (6) - move 1/4 beat earlier.
00:26:053 (1,2) - move these two right on the timeline to the next white lines.
00:37:647 (3) - sounds a little out of place, I dunno.
Insane
Some might complain that this is overmapped. I like it though. "Your Mileage May Vary"
00:14:051 (2) - This stack (and others like it) seem a little out of place. They're not really problems but I can't say they won't be brought up in any future mod posts you might receive.

00:20:864 (8) - move 1/4 beat later.
00:21:269 (9) - end 1/4 beat later.
^ there are quite a few more like these. I'm not going to go find every one of them for you, though.
01:27:433 (1) - consider removing some of the new combo markers from this stack. that thing will be a little annoying to play in tag coop. not that anyone has to map with coop in mind, but...
Conclusion
What you have now is an ENORMOUS improvement over what you had just a couple days ago when I last modded this. Well done. You'll only get better from here.
Here's a star. You earned it.