thinking of getting a samsung i7 laptop for $650

its actually 750 online but a code drops it 100
 
question is that a reputable brand?
it has 4 usb ports 2 are 3.0
and blue tooth as well so I can use that to add a better mouse and keyboard without using my usb ins and I already have a 2nd monitor plus its got a terabyte HDD and 8 gigs of memory.
 
Oh can you remove a dvd drive and put in a SDD to give laptops a second HDD. Is 3.0 fast enough to work with sonar and an external HDD for storing samples and projects on?