is there any problem with mildew smell?

If you leave the clothes in too long they will smell. If you take them out within a few hours they will not. It also has a timer feature, you can set the timer in hours and have the clothes done at a time when you are home to take them out.

To help avoid mildew and odors in the WF210, Samsung recommends following the standard maintenance procedures recommended for most front load washers, which include running empty hot wash cycles with bleach, wiping down the gaskets and door between loads, cleaning the soap dispenser regularly, and leaving the door open between loads. In addition, it is very important to use only the recommended amount of HE detergent to help reduce the residue that can trap the bacteria that can lead to these odors. If you are very concerned about mildew or are unable to leave the door open and clean the washer regularly, you may want to consider a model that has an internal water heater for sanitizing. In addition, Samsung has several models available with PureCycle to help keep the drum clean without harsh additives. These include the WF231, WF330, WF350 and others. Thank you, Ms. Samsung