Works great! Our expectations were low because of the negative reviews of portable A/C in general but the Whynter ARC-122DS works quickly and effectively to cool our apartment. It isn't silent but better than most. The exhaust hoses in our setup extend 3'+ and can radiate a lot of heat so we wrapped with insulation. Daytime temps have been 27-32℃ with a humidex of +5. Condo is S&W corner unit ~1150sf open plan; A/C is set up in living room and all doors except master BR are kept closed while operating. I should add that our windows are push-out and we had to build our own less than ideal venting panel. I'm sure it would work even better with a 'normal' window. Side note: Wayfair/Purolator delivery was a nightmare!