I understand it reasonably well and am hesitant to switch.

I have tried others and have not been impressed.

I am a connoiseur of bootloaders I guess.

It's an important program, maybe the most important one.

Based on my limited knowledge of other computer users, I believe we all have what we consider a "trusted" program that does some task for us over and over again. We come to rely on it and appreciate it (for our own idiosyncratic reasons). We are hesitant to switch to something else.

For me, that program is my bootloader.