IBrowse is a bit more stable than AWeb (IMHO).
There were some unstable versions of AWeb_APL but the 3.5.09 version and later are mostly stable, at least up to HTML 4.01 and JS 1.5. Some people get a 0x8000000B crash on startup which is a LINE-F trap usually caused by FPU code without an FPU. I'm not sure if this is an AWeb component using the FPU (Andy Broad claims that AWeb should not use the FPU) or a non-AWeb library that is called. Similar problems can occur with IBrowse MUI libraries where they are either buggy versions or use resources that the computer does not have.
I love you man. But just because YOU don't know how to install them, doesn't mean they don't work great. 
The "official" BoingBag 1 and 2 cause problems for some users but are worthwhile upgrades. BoingBag 3 and 4 also cause problems for a minority of users and are a mixed bag but mostly good. I bet magnetic uses several components that are in BoingBag 3 and 4 like Peter K's icon.library.
