i just installed my new superhub last week , previously i had the vmng300,
after reading tonnes of bad posts bout the superhub i was expecting the worse however surprisingly , its excellent , the wireless is great laptop can pick it up anywhere in house along with my android phone , and for the other wired ethernet pc's , the 100mb speed is constant for both the download and upload , i'll add info from my own superhub for reference similar to the above post :
Downstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power SNR Docsis/EuroDocsis locked
Locked QAM256 238 55616000 Kbits/sec 291000000 Hz 4.0 dBmV 42.0 dB Hybrid
Locked QAM256 239 55616000 Kbits/sec 299000000 Hz 3.5 dBmV 42.0 dB Hybrid
Locked QAM256 240 55616000 Kbits/sec 307000000 Hz 3.1 dBmV 41.7 dB Hybrid
Locked QAM256 241 55616000 Kbits/sec 315000000 Hz 2.5 dBmV 41.8 dB Hybrid
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown