Hello Martin,
I do not have the entire Design Suite but have had D&W Builder, Accessory Addon and 3D Profiler for quite awhile. I use D&W Builder all the time and Accessory addon on most projects I do. I found I do not use the Profiler very often and have since added Objective which I think is very good.
I mostly do custom residential design and I think it will depend a little on what kind of work you do as to whether it will be worthwhile to get the Suite.
I have been very satisfied for the most part on support and response to problems and questions. They have even added several features in the window trim to a request of mine.
They are constantly revising the add-ons and have been quite prompt in getting out releases in time for the AC release date or soon after. There is usually a fee for upgrading to the next release of AC but all updates are free.
Hope this helps,
Gerald Hoffman
“The simplification of anything is always sensational” GKC
Archicad 4.55 - 27-6000 USA
2019 MacBook Pro-macOS 15.0 (64GB w/ AMD Radeon Pro 5600M GPU)