The CEO of a company selling them says he likes them, and they are selling more quickly than a product which flopped. I am not particularly swayed by this information!
I would absolutely die of laughter if Tim Cook came on stage and said "we worked really hard and we think you will agree, this iPhone is definitely in our top 3 iPhone models ever released. It is really quite good. Seriously, its nearly as good as last year's model, which was great!"