Flights on BA with infants

[neil_gardner]

I noticed this on the BA web site

Infant seats and carrycots
We can supply specially designed carrycots so your infant can sleep on board. These are particularly useful for longhaul flights.
If your infant is between 6 and 23 months you can book an individual seat for him/her by paying the child fare.
The infant will need to be in an approved infant seat (brought onboard by the accompanying adults) which fits on the aircraft seat. We also have a limited number of onboard Britax seats which are attached to the bassinet positions.
These seats are allocated on a first-come-first-served basis and can be requested from cabin crew onboard the aircraft.

Has anyone used their Britax seats? Interested in anyones reviews....