I have a catering business serving hot food at events so I decided to buy the VEVOR Commercial Food Warmer Bain Marie Stainless Steel Buffet Food Warmer 4-Pan. I love it! It keeps the food hot and it´s so easy to use. The shipping was free and it was delivered 3 days after I purchased. So good! I have nothing to complain about it.
My only recommendation is to boil the water to go in the bain marie first so it's already hot, then place the containers with food in and relax. It is very efficient at keeping the food very hot. The recommendation for adding the water already hot in to the Bain marie came from another user when I was reading reviews that said his bain marie took 3 hrs to get the water above 75 degrees. But once it was hot then it worked perfectly well at keeping the temperature accurately. So, I follow this recommendation whenever I use the bain marie. I have not tried myself to test it with cold water to see how long it takes to get the temperature above 75 degrees.