IS THIS GOOD PRESSURE?

[BigBurner]

Limit your showers' flow. Remember a 10kW electric shower only give about 4 litres/minute and the kids wouldn't complain. As you say, it isn't a hotel. It'll cut your bills too.
Be wary of putting all your eggs in the "high mains pressure" basket. We put 2 combis in a stable block, which has long supply pipes from the road. It was fine when the water provider were saying their 5 bar was reliable, but when they cut it to under 2 bar there was a problem. They only guarantee 1 bar at a piddly flow rate.
Cistern and pump was solution for them.

Installing flow regulators on the showers and all outlets has been recommended. I would have thought an accumulator would have been the better option when the sods dropped the water pressure.

The "high mains pressure" basket. He has been recommended to install an accumulator, as the cold mains is already unsuitable.