Excellent

Interface is great. It renders the wave quickly. Selection tool works just as I would expect it to.

I edit hour long mp3s and this app has no problem handling them. I import from Dropbox, edit and export to an FTP app for upload to my website. (I did get a couple of errors when trying to upload via ftp from within the app... So I downloaded an additional app for FTP)

RickLCo about TwistedWave Audio Editor, v1.4.3