My official review of the M8:
Overall, I was impressed with the M8. The ride is very smooth, the seats are somewhat comfortable (though the headrest are still too hard), and there are outlets. Aesthetically, however, I wasn't impressed. The M8 isn't known for its beauty. There was a lot of hype about the M8, but it's essentially a M7a with red paint. The M8 is definitely an improvement over the current rolling stock of the New Haven line, but it's definitely not the best commuter rail car out there. I'm sure the Silverliner V (which I'll likely ride on Monday) is the better model.