Got the Crystal 2.0 today and all I can say is it is unbelievable. I have had an Optrel E684 and thought it was amazing. I currently have a Panoramaxx and love it although it is not quite as clear as the E684 was. Well maybe clear is not the correct terminology as the Panoramaxx has a green tint and the E684 has a blueish tint and the latter suits me better. Ok so what about the Crystal, well it doesn't really have a tint, maybe a very very very slight blue/silver/grey but really it is just like looking through a clear shield. When you strike an arc it goes slightly darker, well actually it must be a lot darker but as there is no change to the colour of the shade you still see everything in the exact colour you would see just looking with your own eyes and no lens. You can still see the material for quite a distance and you do not get the focused small area that you do with other helmets, you can see all around the weld and you don't actually think it has darkened much but obviously it has. I have tried it with stainless Tig at 15 Amps, 30 Amps and 70Amps. I tried Alu Tig at 120/140/160Amps and Alu with pulse and double pulse Mig and all were clear, full non-tint colour and huge area viewable, in fact all were Crystal clear All I can say is it is stunning.