Completely agree.... those electric showers a pathetic excuse for a shower. Nothing worse than standing under one of those things trying to shower. My mother has one and any time I stay there I avoid bathing rather than use her triton super delux XG5xi (or what ever its called). I would not have one in the house at all.
Most homes have hot water to spare these days with central heating going at least a couple of hours a day so the electric water heating feature of a triton shower is not really needed.
My wife and I installed a high powered 3 bar shower pump this year. Such is the power you could wash elephants in the zoo with this thing. We paired the pump with a thermostatic shower valve. This regulates the temp so that its both powerful and just the right temperature without having to twist at the taps to regulate the temp.
Only downside to the pump is that they consume more water than a non pumped shower, which is not good for the environment. As we don't pay for water based on consumption (yet) we may as well enjoy a good shower while we can.