If there is one thing I can always rely on, it’s my trusty portable HVAC device! Let me tell you, I bought this portable device at least 8 years ago plus it has not failed me once. 8 years ago! That is deranged long, plus I am so delighted that I bought this heating plus cooling equipment too, because it has come in handy so more than 2 times, plus people have given me so more than 2 compliments over it as well. I bring this thing everywhere with me, because even places that are supposed to have quality heating plus a/c, sporadically don’t, plus that is when I whip out my portable HVAC device plus turn it on. Within minutes the room has been heated or cooled, just like if you had a central heating equipment in the room, then you entirely can’t tell much of a difference between my little portable heating plus A/C equipment plus the central heating component that is in most homes. There are a lot of times where I don’t need to use it, but it is always superb to have it as a backup. I have had people make fun of me before for carrying it around with me, but they stop laughing when it turns out that I entirely need to use it, because for whatever reason the official heating plus A/C doesn’t work. I entirely appreciate having a portable heating plus A/C device, plus I already plan on when this one does go out, I am totally going out plus buying another one of these. I’m sure by now the HVAC technology has improved a lot.