Grohe it is, thank you.
My problems with Bristan? We had taps and mixers changed in 2 bathrooms, and a utility room so 6 taps and two mixers
Three of the single taps would not shut off and required the cartidges to be changed. One mixer would not switch from tap outlet to shower, the other had a pinhole leak in the body of the tap and as it was the mains side of the valve constantly emitted an incredibly fine jet of water, so small it took us a month to realise where the damp was coming from. That unit was firstly photographed squirting and the pictures sent to Bristan. It was subsequently returned at their request (the units supposedly carried a five year guarantee, they were about 4 months old). They replied saying no fault was found, offering no resolution to any of the other problems. The plumber who fitted the taps did not supply us with the purchase receipt from the supplier, and so Bristan refused to deal with us further demanding proof of purchase. The plumbers mobile was subsequently answered by an extremely irate female and we never found where he lived, other than somewhere in Chesham, so we never got the receipt. £700 wasted pretty much....
.......hence my caution this time around.