I tried with my A1200 and couple of browsers and not very pleasant experience. Even Amiga.org doesn't look good on classic Amiga browsers.
Personally I would use Amigas to get files from Aminet, ftp sites, some Amiga friendly sites, or just chat on IRC, but most sites are not very accessible.
There's a proxy site for amiga.org that works fine on classic Amiga browsers. Strips out all the unnecessary junk. I've used it myself many times with iBrowse on my A2000. Let me know if you can't find it through google, I'll fire the old girl up and pull it off my favorites list.
