Elimination of my social anxiety, near-constant mindfulness throughout the day, profound and lasting experiences of joy, some weird purging of like every negative emotion I've ever internalized, significant memory enhancements, etc. It was definitely not all sunshine and rainbows going through that process, especially since it caught me so off guard (I only got into meditation to have a bit more focus and discipline, and I even thought I was pretty practiced as a meditator before I started getting really diligent about it, but boy was I wrong.) ...but on balance, I'd overwhelmingly say it was worth it.