I live in North Scotland so pings are never going to be in single digits, even on FTTP.
TBH i hadn't heard of Fluidone either before ordering and they turned out ok. I'm sure Cerberus will be fine.
Looking
here near the bottom of their page Ceberus state:
Currently only the 330/30Mbps variant of FTTP is available as On Demand. Once installed rental pricing is the same.
They are clearly stating that their FTTPoD monthly pricing is the same as native FTTP - despite Openreach charging them differently. I'm guessing they are making their money by putting a premium on the install costs. For example, they would only pay Openreach £1050 and then charge you £2000 for a Band B installation. Though there is also an Openreach fixed connection charge of £750 on FTTPoD.
https://www.openreach.co.uk/orpg/home/products/prici...