I have used a fair few irons from Philips, Bosch and Tefal. I have usually stuck with either Philips or Tefal.
This Tefal has many good points, it heats up very quickly and the steam trigger is very handy, although they do have this on my older philips. This one has more raw power as the heat is slghtly stronger and accompany that with the extra steam jets it seems to be good at handling creases.
I like the fact that they have a nice big opening for filling water, unlike some that require you to use the pourer that are provided, by the way this does not have a seperate pourer, I guess due to the larger opening, you could just use the tap.
One draw back is that when filled with water it is slightly bulkier, me and the wife have no isssue with this as it means it just glides with the extra weight, but I guess if someone had arthritis then it could be a problem.
Like the old irons of the past, the extra weight is there to make sure the clothes are pressed firmly and this works in that same way. It looks nice, but it is an iron. It seems to be a good build quality and hopefully should last a good many years.
I can't comment on the anti-double scale, but with all the irons I have had all of them develop limescale, especially as in my area we have very hard water. So, no matter what the iron claims, it never works for us. I have now reverted to using distilled water, which since using eliminates the limescale problem altogether.
Overall, a good iron. Handles creases well and the extra steam jet system works well. It is expensive, but you get what you pay for.