Lea Michele is obviously very well known for her role on FOX TV Show, "Glee", which might not be the best reference since the show itself has very mixed reception with crowds anymore.
Fortunately though, Lea herself is always going to be an incredible vocalist and performer, and seeing her live only went on to confirm that. Not only does she have impeccable vocals, but her many years on Broadway clearly do wonders for her stage presence and how she engages with the fans around her... not only through her movements, but with her eyes as well. There's just something about the way she looks at you out in the crowd that makes you think you're the only person she notices, and it's an incredible feeling to really connect with someone on stage like that.
The audience absolutely loved her and they showed her so much admiration through each of her performances, but perhaps my personal favorites she did would be her newer singles, "Battlefield" and "Cannonball", because she just seems to really, really be into singing them and has a way with those two that I only saw present through them. Don't get me wrong, she's flawless on every performance, but those two just stood out for me above the rest and I absolutely loved getting to not only hear, but experience her sing them in person.
Maybe your feelings on "Glee" are mixed, but don't let that act as a fault to what an incredible performer Lea Michele is in concert. She knows what she's doing on a stage, and by the time her concert is over, you're going to leave knowing your time spent was beyond worth it!