I agree with The Complex - the only improvement is the ability to add several photos at once, which isn't remotely useful enough to me to give up everything I lost with the new uploader.
I found this, which lets you default back to the old uploader. I'll be using this until major improvements are made in the new one.
I always try to be positive and thankful when giving feedback, but I also want to be completely honest, or else what's the point? The truth is, I have really tried but I still can't imagine how the WordPress team arrived at the conclusion that it would be an "improvement" to:
--Create several more clicks and a whole extra task out of adding a featured image, which used to be one simple click - boom, done
--Default to a "drag" screen when people are using smaller and smaller devices without offering the option to default to the upload window. I simply don't have enough screen real estate to have a folder window open alongside my browser.
--Giving us pictures only without letting us see at a glance the names of those pics. I work with nearly identical comparison photos - the only option now is to upload one at a time, work with it, upload the next, etc.
It just all seems so incredibly counter-intuitive. But as long as I have the option to use the old media uploader, I'm done complaining. Of course, should they make that impossible at some later date, and I'm stuck with something like the current setup, I will not be happy. We shouldn't need to add plugins to fix a "feature" that's really more like a bug.
Again, I'm sorry if this sounds harsh. For what it's worth, this is the only time I can recall (in 8 years of working with WordPress) wondering what on earth prompted the team to make such a decision. Normally even when I don't like a change, I get it and can see how many other users would, so I don't kick up a fuss. But with this one, I still just don't see how it could be considered an improvement on any level besides the ability to add more photos at once.