No, there are plenty of people how have issues with WordPress each time there is an update - actually Millions of people have problems with themes and plugins each time there is an update
Right! Remember that time- Wait a minute. That never ever ever happened. Sorry. ;)
As Andrew has indicated if there is something you need help with then we're game to try and help you. If you just want to complain and vent, well OK. But after a while this thread will get closed. This is a support forum after all.
Why WordPress feels it must fix what isn't broken baffles a lot of us.
WordPress continues to evolve and most people actually like the media uploader (yes, you don't, I get that).
Back to your original question:
Before I updatee, does the Media uploader suck worse than last time?
Nope. The 3.5.2 update is not related to the media uploader.
If you are really worried about it give the long upgrade doc a read.
The short version? Make a full backup and then do the upgrade.
If you don't like it or your installation goes up in flames then you can put it all back the way it was.
Our advice will always be to upgrade to the latest WordPress version especially for the security issues reported. If there are problems with your installation then more often than not it's either your theme or a plugin.