Just switched from Canon A9 to Sony. This is my first Sony lens. The build quality is really good if it feels like a tank, like a Canon counterpart. It's a bit more expensive than Canon, but I think it's worth it. Focus was fast and accurate, and very quiet when shooting video too, which is a bonus. The only downside is that the front is heavy with my camera, but this could be remedied with a battery grip in the future.