I've been using Soundop regularly for several months and am most pleased to report that it is an outstanding audio editor and worth the asking price. It is remarkably stable on Win10 and delivers top-shelf performance on any audio editing task I have used it to complete. The UI is clean and uncomplicated, and it supports enough customization to meet my needs. The menus are relevant and straight-forward, and it's workflow is intuitive. I have experience with WaveLab and older versions of SoundForge, and I found the learning curve for working in Soundop to be small.
I've used it to edit music tracks and create stems. The application lent itself well to making this work go smoothly. I like to have takes, versions of the takes, backups of the versions, backups of the takes, and even backups of the backups from time to time. Soundop did not have a problem adapting to my system.
I have also used it to capture 'found sound' samples in factories, construction sites, etc. The recording process was painless and efficient. I also used it to clean up and process these samples. The Mixspace feature was a valuable tool for this sort of sampling.
The included processing tools are respectable, but I tend to use 3rd party plugins for these sorts of things.
Thanks for your interest in Soundop. We don't have such stats on our website. It is easy to test the SRC in our software with the spectrum view and seemed got a moderate result. If you have any question about the software, please feel free to contact us.