So far since installing Ubuntu I've only had to copy & paste commands once, everything else I've done has been point & click, installing on Ubuntu is only as hard as you make it for yourself & converting RPMs is totally unnecessary most of the time as you can find a DEB version right next to the RPM.
If you really "have" to convert an RPM there are things that can be installed to make it point & click too, so like I said it's only as hard as you make it.
