I played them for quite a few years in my irons. The only reason I stopped was availability. I needed to move from a stiff shaft to medium and could not find a set of medium Ti irons shafts. One thing that is really important in my opinion is be sure to spine align your Ti shafts. They have a strong spine and if you don't the flexes will be very inconsistent.
They do not have the same feed back as steel, but that is because they dampen vibration extremely well. That is why I used them. I was having difficulty with sore hands. It is still a problem for me so I played Ti and then went to graphite. When I used them I was using a stiff shaft tipped 1/2". I played some of my best golf in my life with my Ti shafts.
Today graphite is better than it was 15 - 20 years ago. Once you dial in Ti shafts they are more accurate than steel. At one time a decent number of PGA players used Ti shafts even though they were never paid to play them. John Daly played them in all his clubs for some time. All Ti shafts were made by one company worldwide, Ti Sports in Washington State. They made many ti products and golf shafts were simply a sideline to them. True Temper signed a contract with them and frankly tried to bury them in the market place while they, true temper, developed their light weight steel shaft.
I will have to consider getting a set since I have read your post. I am not as strong as I was when I played them so I would probably be interested in buying one shaft, trying it in a 7 iron for a month or two. Could you send me the contact information for the FB seller. I am not on Face Book and would like to make contact with the seller. Thanks