Harrison did an absolutely amazing job. He thinks ahead, and goes above and beyond the basic requirements to make sure the end result is absolutely fit for purpose (eg, he wasn't happy with the fixings for my mammoth radiator and drove off to get stronger ones, which he didn't even charge me for).
I liked that he gave options along the way (eg, "I can fit it like this and it will look more symmetrical, or like this and it will be more efficient in terms of flow") and also that when I mucked up and gave him the wrong position for the sink, he moved the pipes with cheer, and when we couldn't move a wardrobe to bleed a tricky radiator, he problem solved it neatly. Also, he's a great communicator - he dropped me a text when he was half an hour away. Very tidy, leaves the site spotless. And just a really nice person to have in the house - nice and friendly, good with dogs, kids and psycho killer house rabbits.
His professionalism and knowledge are impressive for someone closer to the start of his career than the end. He charges a good labour price, is super transparent and keeps the receipts for parts, and doesn't mess you about - a proper grafter. Highly recommended - thank you so much Harrison, see you for the utility room and sorting out spaghetti junction... ;-)