I would say only use this software if the specs of you device is low otherwise use the built in copier. The software is fast but I didn’t like it in some situations.
Sometimes it takes time to start copying especially doing with small files. I have a mid range speced CPU so my built in windows copying does small jobs in ease.
And when it comes to big files it copies better than any others and problem I faced was when copying from external hard disks it it crashed down for files like .iso files. I don’t know why this is happening and this is my personal experience. So its up to you based on your specs anyway I am not using it for now.