Just a few possible reasons:
He works bl**dy hard, he does not beg, he delivers what he says he will, he is down to earth, has a good and sometimes refreshingly self deprecating sense of humour, he does not think he is the bee's knees, he does not spend on luxuries, he does not think designer labels are a necessitiy, he does not do name dropping, he loves his partner/wife and his kids, he admits mistakes that he makes while doing up his house, he does not need a shitoo to be happy, (ok, and he is a bit of a looker, but we won't mention that here, will we!
His are one of the very few vlogs I enjoy watching. Absolutely no cringe factor.