I didn't think it could get better than episode 25 and 26 of Gurren Lagann. My God, was I wrong. Not only is TTGL a worthy conclusion to the series, it completely blows the anime away. The redone animation, updated visuals, fightscenes and new scenes are just perfect. In the anime, I didn't really feel any connection to NIa nor sad when she died. This time around, I was legit crying. I'm glad they changed a few other character deaths around too. My one complaint is the Kamina scene from episode 26 is not quite as sad here. The music was perfect and I am glad that I watched this. I really hate how I missed Gurren Lagann when it first aired, but the past week or so I have definitely made up for that.
If you are a fan of the series, unlike the first film, it is completely worth watching the full 2 hour film here. It's faithful and different enough to warrant a rewatch and the feels will hit you all the same.