Is it worth upgrading to win 10?

Regarding the pointers above:
I have been using Windows 10 since January on my main PC (a Lenovo X1 Carbon laptop) that is used for up to 12 hours a day. NO PROBLEMS.

- Touch screen not working - mine does.
- Bluetooth does not work - mine does
- Shut down does not shut down properly - mine shuts down smoothly
- Sound problems - no issues.

YES, you should upgrade to Windows 10 and join the 75 million people who have in the first month after release. These are some of the things you will get:

Start Menu
Continuum for tablet / desktop switching
Cortana - your personal assistant
Edge Browser (IE 11 is still installed if you need it for backwards compatibility)
Windows apps on the desktop
Improved built-in apps, e.g.
Mail, Maps, Calendar, Photos, News, Weather, Sports
Office apps now available from the Store
Improved Search capability - in the PC and across the web
Improved Settings app and control panel
Action Center / Notification Center
File Explorer improvements
Windows Store improvements
Phone Companion - Links your phone to the PC and other services.
Task View and multiple desktops - Task switcher
Windows snap to quickly enable multiple side-by-side windows
Automatic updates and continual improvements as Windows as a Service kicks in.
More secure and resilient
Scheduled restarts if a reboot is required
Improved Command Prompt window
DirectX 12 for better performance in games
Support app - find online tips or chat with Microsoft support online (everyone who upgrades to Windows 10 gets a free 15 minute support phone call to Microsoft).
Much easier for developers to port an application from iOS or Android to Windows.
Device Guard, which prevents applications from running unless they are recognised.
Windows Hello, for biometric authentication.
Secure Boot, which prevents malicious software from loading while a computer boots, thereby potentially compromising the operating system as soon as it starts. Yes, it's worth it. Yes, but there's a catch. If you are on a laptop, there are currently some major issues right now such as:
- Touch screen not working
- Bluetooth does not work
- Shut down does not shut down properly
- Sound problems

If you're on a laptop, you should wait a few more months or next year to upgrade and let Microsoft and your manufacturer to fix the issues, mostly drivers. Yes, it's absolutely worth it if the drivers for your machine have been updated by the manufacturer. All those problems that Anwar Haikal mentioned are due to driver issues which are the responsibility of the manufacturer to update, test, and release, not Microsoft's.

Yes, it's worth it.

Yes, but there's a catch. If you are on a laptop, there are currently some major issues right now such as:
- Touch screen not working
- Bluetooth does not work
- Shut down does not shut down properly
- Sound problems

If you're on a laptop, you should wait a few more months or next year to upgrade and let Microsoft and your manufacturer to fix the issues, mostly drivers.

Yes, it's absolutely worth it if the drivers for your machine have been updated by the manufacturer. All those problems that Anwar Haikal mentioned are due to driver issues which are the responsibility of the manufacturer to update, test, and release, not Microsoft's.