Surface Laptops SSD Upgrade?

On a last minute decision, I got my wife a Surface Laptop (i5, 8 GB, 256 GB) for Christmas since they were on sale at microsoftstore.com. Had read many reviews stating the SSD was slow, so I was a bit nervous. The first thing I did was check it out. Right away, I noticed the drive was an Intel drive (INTEL SSDPEBKF256G7), not Toshiba like those that were reviewed early on. I then installed CrystalDiskMark and ran the benchmarks. Results were much better than the early reviews reported. Has Microsoft made a permanent hardware change or did I just get lucky due to some shortage of Toshiba hardware?

Crystal Disk Mark Results

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CrystalDiskMark 6.0.0 x64 (UWP) (C) 2007-2017 hiyohiyo

                         Crystal Dew World : https://crystalmark.info/

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* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]

* KB = 1000 bytes, KiB = 1024 bytes

 Sequential Read (Q= 32,T= 1) : 1061.970 MB/s

 Sequential Write (Q= 32,T= 1) :  506.214 MB/s

 Random Read 4KiB (Q= 8,T= 8) :  287.911 MB/s [ 70290.8 IOPS]

 Random Write 4KiB (Q= 8,T= 8) :  402.133 MB/s [ 98177.0 IOPS]

 Random Read 4KiB (Q= 32,T= 1) :  273.979 MB/s [ 66889.4 IOPS]

 Random Write 4KiB (Q= 32,T= 1) :  415.507 MB/s [ 101442.1 IOPS]

 Random Read 4KiB (Q= 1,T= 1) :   33.789 MB/s [  8249.3 IOPS]

 Random Write 4KiB (Q= 1,T= 1) :  107.097 MB/s [ 26146.7 IOPS]

 Test : 1024 MiB [C: 15.7% (37.3/237.2 GiB)] (x5) [Interval=5 sec]

 Date : 2017/12/25 20:15:00

 OS : Windows 10 Professional [10.0 Build 15063] (x64)