That question is going to get a lot of opinions as answer's. There really is no straight up answer. It's all opinion. I myself am self taught, which to me, makes you develop your own style. I can't read music, just tabs, but I can play Eruption.....You don't have to be able to read music to be good or great. My opinion of taking lessons is that your going to learn the style of the person teaching you. But at the same time, taking lessons takes the guess work out of learning. You get a clear path on what to do in certain situations. If your wanting to learn theory, the best thing to do is take lessons, but if your wanting to develop a unique style, I'd suggest keep on learning on your own.....