PSG didn't have much problem facing Real Sociedad in the second leg after they had 2 goals in hand. Luis Enrique is a coach who can be relied on enough to win matches against these La Liga representatives, so I think you can put your trust in him because PSG's journey in the Champions League this season looks good to qualify for the quarter-finals.
PSG is not thinking much about Ligue 1 as they lead the standings with a large points gap. This can provide many benefits for PSG because they can really focus on the Champions League. I would doubt PSG in the quarter-finals if they met teams like Manchester City or Real Madrid, but the match will definitely be tough for them if they meet other strong teams like Arsenal and Inter.
Champions league are for the elite teams, clubs that are have strong background and not panic by the actions and brilliant results from their oppositions. PSG have almost made to the next phase because what more to expects from this upcoming UCL second leg? Paris Saint-Germain nailed Real Sociedad 2 nil in the first leg, giving Les Parisiens full hope of qualifying from this current round of 16. Luis Enrique will make only few changes and either bargain for draw tie against the Spanish side who crawl on their kneels to do an epic comeback.