Newly built with significant safety issues. I arrived at 11pm, took a shower and noticed the hairdryer wasn't working/appeared to have been fried (electrical) from prior use. Seemed odd. I unpacked my suitcase and brought out the portable Carbon Monoxide detector that I had with me during the prior 12 days of my trip. The levels went up to 36ppm which is unsafe (WHO declares 9 or above to be unsafe). I contacted the Manager by phone and his representative came to the room while we decided my next option. While in the room, I plugged my iPhone into the wall and within 5 minutes both my phone and the charger became too hot to touch. I showed this to the representative who was standing there and he was surprised. Given the hairdryer that seemed to have received a surge of electricity and my phone getting hot, I think someone needs to check the electrical system. This was the first time I traveled with a CO detector and it had registered 0 throughout my entire vacation, except for here. They first advised I keep the sliding glass door open while sleeping and then offered to put me in another building but I didn't feel comfortable with this plan. They denied my request for a refund because I was there for 1.5hours. Will file a claim with my travel insurance.