Overall, when comparing this hotel to other hotels in the same price range, this hotel is a great value for money. It's clean, has a convenient location, restaurant, free breakfast, Wifi all of which you would not necessarily expect when paying under 30 USD.
The only thing I would advise the owner is to invest in more solid equipment, especially in the bathroom. The plastic toilet covers break, the soap holder falls off, the shower head is falling apart etc. It pays off in the long term...Also the access road is bumpy and not paved for the last 50-100 m, not much to do about it, just expect it.