I'm still not fully acclimatised to it. But I will say it is one heck of a piece of glass. (Providing you can get past the worry that a protective filter cannot be put across the front element).
Bought but not seen or used just paid for. My local family owned camera store ive bought ALL my gear from, rang and said they have a barely used EL-1 Speedlite flash. Version 1
Rang me as soon as it came in.