I've been in contract for less than a month.
If when I bought the package they had said that I was buying M500, but was getting M600 as a benefit I could understand that. However, at no point was M500 mentioned.
The package is quite expensive, so I just want ensure I'm sweating the asset to its fullest.
The speed I get seems to deliver between 300 - 400 Mbps over WiFi depending on the time of day - not terrible, not great, but ok.