Some thoughts off the top of my head. I used to really like Cigraph's ArchiTerra, and had a couple of other useful modules. However, since they went to a dongle-based system, they lost my business. As a (then) current user, I was supposed to get a free dongle, but that never happened. At this point, I am not willing to deal with the hassle of another dongle. Fabrizio there was great, but I haven't seen much of him lately, so don't know too much what kind of support the company currently provides. Much of the benefits of some of the other modules, like ArchiForma, has been eliminated by the improvements in native AC. Also, they were not always there with updates when new AC versions came out, which was a big problem. In short, good stuff, but headaches.
I have a subscription to Cadimage tools. I like them, generally, but there are headaches there, too. The Cabinets tool is very good, but WAY too many pages of parameters. Still, for what I want, it's the best and most flexible. If you use keynotes, then I think the Keynotes tool is probably the best out there. I like the Coverings tool for the gutters and downspouts, and it has some nice fascia and eave options in the roof tools, along with tile roofing. Objective does some specialized things very well. Electrical does not work very well with their USA parts, and annoys me greatly, because I would really like this to work. Complaints seem to have fallen on deaf ears. Stairs are pretty good, but not without a learning curve and their own set of headaches. Doors and Windows are very flexible, but still not to USA standards, especially regarding casings, which wouldn't necessarily affect you. They STILL don't have comprehensive documentation for AC20.
Yet the subscription model works pretty well; you can start and stop easily and they seem to keep up with new AC releases. Generally, I've found that Cadimage parts can still be resized after a subscription expires, but that's the the only changeable aspect. You CAN convert Cadimage parts to morphs. Favorites work well. Why not try the free Cadimage demo out and see what you think? Hope that helps...
Richard
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Richard Morrison, Architect-Interior Designer
AC26 (since AC6.0), Win10