[Skie]

You say jittery, which is usually a feature of DOCSIS. They haven't yet moved away from that, so yes, it'll still have jitter. FTTP is the best readily available connection type if you want the least amount of jitter and VM are supposed to be transitioning to it eventually - but it won't happen quickly!

Will it be better than you had previously? Perhaps if there was a fault or overutilization, or you get a new hub without a better chipset. But the only way to tell would be to try them again and bail out within the cancellation period if you aren't happy.