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
supportreps
tech issues
technical support
time wasting
user experience
windows 7