I enjoyed Wil Wheaton's work in "Star Trek: The Next Generation." I was always impressed how easily he handled all the technical jargon in his dialogue. I never could understand all the hostility he got from Trekkies who objected to seeing a teen character on the show. I thought he was a great addition.
I was much less happy, however, with the work he did in films. He was fine, but so often he got stuck with the most corny lines to say. To this day, it amazes why such an intelligent guy (maybe too intelligent?) would put up with such substandard writing. I've visited his web log, and the quality of writing there is like day & night compared to some of the groaners he was stuck with by Hollywood film writers.
He is not as active in acting these days, but from what I hear, he is doing well.