I've tested it and like it, but if you're computer challenged you'll want someone good to install it. It needs it's own hard drive partition, which is a different type of partition than Windows uses (Fat 32 or NTFS). And much of your software (Windows based) won't work without additional software that will allow it to run as a shell over Ubuntu. For the person who's looking for simple computing, it's not something I'd recommend...
I'm here if you need help on Opera. I may not be able to handle some inquiries but I can cover the basics... I'll be back in the early afternoon. Golf awaits...
Thanks!