I did not even think of looking at a new Jackson when I bought my new Esab helmet for my Christmas present, but I probably should have. My long time auto helmet of over 20 years is a Jackson and as I recall it was about $300 back then (close to when they first came out). That early model uses 2 AA batteries which last a long time, but they add to the weight. The ESAB is an incredible helmet, but I do believe the Jackson has the longest reputation for quality helmets. It would be fun to put the new Jackson side by side and compare optics and features with the new ESAB. Like you said, a lot of things are different than our older models, and they'll take some getting used to. The new ESAB has 3 sensors near the top, and backs up the solar power with 2 button batteries. The ESAB is shaped differently with a "bubble" shape in the mouth and nose area. I do not know if this will get in the way of some welding positions I need to take while repairing stuff, but the design is supposed to help get your exhaled breath out the front bottom and greatly reduce the fogging of the lens in cold conditions. My old Jackson would frequently fog up from my exhaled breath.
But You got yours FREE! And that beats any feature mine might have.
Have a Good New Year!
Paul in MN