We arrived on schedule at the unit. Great location, located a few houses from the beach. The mechanical lock box was not working, either the code given was incorrect, or the batteries were dead. I texted, and called the owner Mat at the contact number given, over an hour went by, no response. The tenant who owns the other half of the house walked by, I told him who we were, and that we needed to contact Mat, he said something to the effect of “good luck, I’m try to get a hold of him too”. It was getting dark, almost all of the hotel rooms on Oahu were full. You ask yourself, what happens if this person does not get back to me? What’s my fall back? I waited about another 30 minutes, I called and called the contact phone, nothing. We drove to Honolulu and stayed at a hotel. Mat did finally respond, sometime between 90 minutes and two hours later, he gave me his actual contact number, why this is not given when the property is booked is a good question. It was a very stressful and totally avoidable situation, if we had either been given the correct code, and or the batteries were working, and or Mat provided a good contact phone number then none of this would have happened. We also noted that there is a very large new home being built right next door, expect construction noise, and it would appear that the new house will block most or all of the ocean views.