About: BX200: Yes, 1st attempt, but the sequential write quote was awful. 75MB/s for a 960GB-drive? That was real bad.
German magazine c´t checked some SSDs 240-256GB for reliability:
BX200: 187 and 283TB
OCZ TR150 934and 945TB, but Ultra II with same NAND only worked for 690 and 749TB. Maybe the Marvell-controller had higher Write Amplification?
Samsung 750: 1203 and 1289TB
Sandisk Extreme Pro:, One worked till 2836TB, other still worked atm
850 Pro Last count was 4622TB, both SSDs still worked at this time, dunno the status now
The 840 (11 month?) and 840 Evo (2 months?) had the problem to slow down reading performance massivly if the data was longer time, speed of 20MB/s
Samsung need long time to solve this problem, dunno if they solved it now, first update don´t worked.
I send the MX300 back and get my money back
If you drunk system, you maybe see 2 MX500 ,) ?