in my opinion sadly the only thing you will experience from microsoft hotline is a waste of your time, and / or money.
my reasons were based on the following. i was transferred to three different reps, each of which i was asked my full name, phone number, email, edition of windows and reasons...
bios update
consumer rights
customer service
dissatisfaction
hotline
key validation
microsoft
phone call
problem resolution
review
support reps
tech issues
technical support
timewasting
user experience
windows 7