Comment 11 for bug 46520

Yes it's a 'geek button' - beginners (first time linux users) will choose default option in 98% of cases without any understanding about hd0 / hd1. Something really useful can look like -> Install to Windows boot partition (with explanation : this will let you to chose preferred OS from the Windows Boot Manager, at the windows boot) // Install to Linux boot partition (targeting on the Linux boot partition, with explanation : this option will let you to choose preferred OS at Linux boot from the Linux boot manager, but be careful - on this case you may need to choose your linux Hard-disc from Bios when U need to boot on Ubuntu ).
Some derived cases regarding 1: different partitions on the same Hdd; 2: different partitions on 2 (or more) hd's, should be covered too.

This kind of adviser will have GOLD value for new linux users and for mid linux users too.
This must be the way, without exceptions (for entire Ubuntu concept not only for Grub Installer ) if we want to grow a friendly, global community on a 'non geek' world.

Else ..no problem Ubuntu community will be large and growing anyhow ...but we can be sure we will miss something - even 0.1%, even a single person.
For me it's ok as is now.

Eventually GRUB INSTALLATION STEP can present at start 2 main modes :
-Advanced Grub Installer (with grub extra options - if we admit that geeks don't like to read again what they already know) -Default Installation (Guided, very clean and clear, explain about all possible situations ).

Drawbacks - NO ONE - This is a Win - Win situation. And a good example of how we (Ubuntu community) understand the way that world should be.