2 weeks is not a long time!
Theres plenty of reviews and comments on here and other tech sites to say how good the M4 and the Sammys are, 2 weeks is plenty of time to see if hardware has any niggles or problems.
2 weeks is not a long time!
Toms Hardware in their most recent 'Best SSDs for the money' post list the Sammy 830 as the best around the £80 price mark.