A lot of same league ties early on, last season the madrid and bayern ties wouldn't have been allowed at this stage.
I'm a strong advocate for an entirely open competition from the very start so I'm not complaining but I can see a situation where this becomes boring very quickly. The competition is dominated by 3 or 4 league's so the teams in those leagues will regularly play each other and in a couple of seasons time when the tedium sets in of playing domestic rivals in this competition, I can see widespread complaints.