I am not at all impressed with unit. It’s inexpensive and it shows so I guess you get what you pay for.  There were marks on the outside that I thought would come off after cleaning it up but to no availI. After serious consideration I thought about returning it but after opening it I felt it wasn’t worth the effort because of the weight.  This will go to the garage or junk as soon as I find something to replace it.  Would not recommend unit.