I'm not sure where to start with Gordon Ramsay's Hotel Hell, but as a core belief, I say that someone should not act as an expert in something they don't specialize in. It's kind of like a biologist acting like they know everything about physics, provided that they've only had biology-related education. This is the case with Hotel Hell.
Gordon Ramsay made his fame through the restaurant and dining experience. He's known for his outbursts and rude awakenings, but it's always been related to food - his specialty. Last year, I saw some episodes of Hotel Hell and the first thing that came through my mind is a simple question of "what kind of experience does he have with hotels"? To me, it's not good to have a show whose main host has no deep roots in that business.
Of course, it's highly interesting to see the different hotels and to see Gordon Ramsay's softer side in trying to help out these struggling owners, but the show doesn't get as much credit because the host and producer are not professionals in this field - so there's only so much you can believe.
Most of the show is also focused on Gordon himself, like him swimming in the pool almost every episode...Apart from helping to renovate one or two rooms in the hotel, the only good take-away is the restaurant aspect of each hotel, since he does specialize in that area.
Overall, I rate it a 6/10 because of a lack of professional input from the hotel industry, but it is still good entertainment because it's frightening to see how terrible some hotels are.