Ditto...clearer and sharper, like MM said.
It was at the 3rd level that I dumped A LOT of stuff...negative baggage, etc. It was a massive cleansing, miserable but worth it. The balance achieved really comes through now when I read. I can't help but believe my clients sense it, too. Most importantly, my intution flows freely now, because I am not bogged down with all the baggage. Man, that stuff was heavy!
One other way it has helped is that, before my Master attunement, I had difficulty grounding myself, and I would sometimes pick up on the heavy emotions of others. But after this last attunement (Reiki 3), I can easily ground myself with the proper symbol. So, I guess it's the other side of the same coin; my intuition is clearer and sharper, but not overwhelming and all over the place. That's a HUGE relief if you're a particularly empathic person.