The only weird thing I heard was when you've clearly rotating the mic, so the image shifts dramatically, but that's to be expected. It sounds okay to me otherwise. I'd also recommend recording in M-S and do the decoding in post. You'll get more control over the angle than two settings, and you can select something appropriate to the sound of the performance, the room, the crowd, etc. I've even cross-faded between multiple M-S decode angles for when a performer went off mic.