I found installing Indiana to be a very straightforward process. In fact, it was much easier than I'd expected it to be. Here is the first of a few observations worth passing on:
The System Requirements page needs a bit more explanation, and the Disk Space row is probably the best example of this.
System Requirements
Disk Space: Recommended size is at least 10 GB.
Is 10GB the minimum amount of space that one needs to comfortably run the Slim Install, or the eventual full package? Is this the amount of space that the OS will physically occupy, or the amount of space it will need to run with some level of ease, accounting for caches and so forth? Let's clarify this a bit further.