Unity is not stable
Use another DE if you want. I find it stable, until I wreck it.
further we need more mouse clicks to get the same result
I disagree, I think it is very usable - much better than windows for a start.
No way to add launchers to panel.
Sure it is! You can create a .desktop file and add it - see here for information.
With any of the Gnome flavors many functionalities are lost.
Again, the GNOME flavours don't have it lost, just hidden. They are designed for the less technical user.
There is no easy way to create Desktop shortcuts.
Again, the same post - see here for information. Just save it on the desktop.
Gedit crashes when opening more than 4 documents and when try to open utf-8 encodig files.
File a bug report on launchpad? Are these large files? Can you open them in vi or nano, or leafpad? Some large files do crash gedit.
Vino server does not work.
Again, a bug report on File a bug report on launchpad. We need more information than "it doesn't work".
The starting time is up to 30 seconds (after login screen).
Make a cup of tea? I think that's pretty impressive - all the features of a computer at your fingertips in 30 seconds?
Wireshark crashes when begins capturing data.
Again, a bug report on launchpad. I would need to see logs and any error messages it gives in terminal.
Xorg is updated frequently and sometimes I have to configure it by hand in the terminal to make it works (not for beginners).
"Make sure it works"? More info? The terminal is not hard to use - open it and copy/paste commands to it. You could start a blog to help other newbies with this problem.
The suspend mode does not work without making many tweaks.
Fair point, I have problems with suspend. Just do the tweaks - if it is fixed fine. Otherwise a bug report on launchpad will help others. One of the amazing things about Ubuntu is that there is normally a workaround to a bug.
Is a pain copying or moving files between folders using Files.
Umm click drag? Ctrl+C and Ctrl+V. Right click copy/paste? What are you finding hard?
Remember you can use the cp command - you seem to be an experienced terminal user.
Software updater only works launching it by hand, does not starts automatically.
Maybe your settings are wrong? See this answer.
And many other drawbacks that I do not remember now.
Well if you can't remember them, they can't be that bad. No point moaning!
I hope I've addressed some of your concerns, feel free to comment if you have any queries.
