Slow, no progress indicators,dragsMac to a helt

I tried the QuicK Clean option to remove unneeded files, and gave up after five hours. It first scans to find the files, then deletes them. The scan took a long time.The delete took even longer, and while it was running there was absolutely no feedback on progress. I could perhaps have lived with that, but while it was running the Mac was basically locked up. No other application could run at anything near a usable speed. After over five hours, I had to quit the app to get things done. When I did, it gave me no “Are you sure?” message. Very poorly designed application. I am sorry I bought it.

Max Brusco about iBoostUp Premium