The grohe stuff is very good. Good quality.
I've found grohe stuff good, hansgrohe even better. Sometimes a few good deals on Amazon warehouse or ebay
What's a good value quality mixer tap to go with it? I'm asking for a recommendation before some joker answers literally.
The price is difficult to say without looking at what your set up is, but start by adding in the cost of the sink/basin, and a new tap, are you doing the work yourself? If not you don't need to buy any tools just the sink and the fitter can do the rest of the work, if you have isolater valves fitted near the sink/basin in existing pipework then the water supply to the taps can be easily shut off, on the other hand if you have a cold water storage tank and a hot water cylinder, that would need to be drained if there was no way of shutting down the supply... so you see its difficult to quote on price without knowledge of the exisiting setup..HTH
Approx what price range am i looking at for the tools and labour, considering if i choose to grt this above sink?