Near perfect for me.
My X3s went through the washer AND dryer, and understandably now aren't as reliable as they once were. The Tarah Pros check off all the boxes for me. The battery life is perfect for someone like me that wears them almost all day at work, and then at the gym afterwards while I train. Sound is excellent, and the companion app seals the deal. It was cool to discover that when you use the magnet to clip the buds together, it automatically stops whatever you're listening to. I've also used the switch fit feature MUCH more than I expected to.
The only very minor knock against these headphones is that because I use the magnetic feature quite often, some of the logo has worn off. Doesn't affect performance whatsoever.
Well worth the investment.