...and never used C band which I believe is probably a somewhat easier to align and will get even easier as they disappear.
With the increase in KU sats for Tv, radio ( in a country with free speech why should we have to pay to listen to radio) and data alignment becomes more difficult as the arc become more crowded.
I find c-band a little harder - the signal can look good on a meter but you won't be dead on the bird. That's why I use Ku-band - much more unforgiving of pointing/alignment errors. C-band just falls into place when you use Ku for aligning.
as for ku-band being crowded and making alignment difficult, I don't have that issue. I have had the issue with my $10 squaker I used to use since it looks at generalized energy and not specific frequencies. With my satfinder meter, no problem. I try to use fairly unique freqs/SR's that stored in my meter so I can know for sure if I"m on the right bird/polarity.