This is a very good filament that I tested on my Creality ender 3 Upgraded. It has consistent filament diameter all the way. There is no dust/dirt on the filament anywhere.
As I don't have a ziplock bag, I generally leave it on the printer loaded for whole day. May be because of moisture of the room, the filament between the spool and the feeder breaks. This is also mentioned on the product details to take care of storing the filament properly. But I could not find a ziplock of this big size. I wish WOL3d provides a ziplock in addition to the filament spool. It's a very good quality product already. Just a request for added value.