just got it yesterday 
21.5" i7 , ram 4 Gb, HDD: 2 Tb
ram to be upgraded to 12 Gb soon
so fast, gfx are awesome with games
the fan is very quiet even if i can hear it, compared to a complete silent fan on my MBP
but nothing is perfect
screen is awesome, trackpad makes you forget about typical mouse
i also wished the SSD was not so expensive
or at least an option for 128 Gb would have been nice
in conclusion: for the first time in years a very nice bang for the buck
for those who are considering a MBP, have a thought about getting an iMac + iPad
it makes a great combo
and you can get 2 machines for a the price of 1 (compared to high end 15 or 17" MBP)
21.5" i7 , ram 4 Gb, HDD: 2 Tb
ram to be upgraded to 12 Gb soon
so fast, gfx are awesome with games
the fan is very quiet even if i can hear it, compared to a complete silent fan on my MBP
but nothing is perfect
screen is awesome, trackpad makes you forget about typical mouse
i also wished the SSD was not so expensive
or at least an option for 128 Gb would have been nice
in conclusion: for the first time in years a very nice bang for the buck
for those who are considering a MBP, have a thought about getting an iMac + iPad
it makes a great combo
and you can get 2 machines for a the price of 1 (compared to high end 15 or 17" MBP)