Hong Kong New Style Guest House is such a good place since it's along Nathan Rd. and near the mtr Mong Kok station and also near the bus stops. It's also near the Ladies market and Sneaker street. The place is quite small, so don't expect too much but since you're just travelling it's good. It has a heater in the bathroom and an aircon if the weather is hot. But since we booked in February, we didn't need to use the aircon since it was cold. All over stay was great even though we arrived at 3am, the caretaker answered our call and assisted us via call for check-in.