I've been using Alcohol 52% & have suffered no ill-effects.
As Midders stated, it's a free version of Alcohol.
It allows up to 6 virtual drives, which I've put on shortcuts to on my desktop. That way, I can just right-click on one of the desktop drive icons & select "mount image" & browse to the image & mount it without having to open the Alcohol app.
Also, the "Image making wizard" is pretty useful.