Personally I like Chloe's presenting. Adopting a detached, critical view of TJC and many of their products may be a strange approach, but there's no doubt that it builds trust with the viewer that she really does like the products she's telling them to buy. She appears to be 'on their side', and I imagine that reflects itself in sales, or she wouldn't continue to be employed. I'm not a gold jewellery buyer, but I think most people would be likelier to shell out big bucks for a gold chain if Chloe was enthusing about it, rather than Chris SV or Derek (both of whom I like) just going through the motions. I'd also point out that 'watch me with the sound off' is criticising herself, not the viewers. She admits she annoys people.