This one's for everyone to consider
When we got our flat done up a few months ago, I asked the company to get me a low-flow shower head as well.
I got the idea after reading this post by Mister Money Mustache.
I was a bit worried about the quality of the shower (I'm really particular about water pressure) but was pleasantly surprised that I couldn't tell the difference between the old one and the new low-flow shower head.
The only difference is that the new head makes a whistling noise (where the air is sucked in to increase the pressure). I soon got used to it and don't really notice it any more.
Now, if I was a competent blogger I would have data about how much less water we are using and how much money we are saving.
Unfortunately, I am pretty incompetent. Really pleased with the shower though and for the price it seems to be doing the job well :)
Given how easy it is to install (merely unscrew the old one and screw the new one in) and the low price, I think this is worth considering.
Anyone else have a low-flow shower?