I share the disappointment. When I saw V5, I was thinking "oh yeah well, someone has woken up finally". Then during a boredom I have tried to log in and see the downloads and i saw the upgrade to V5 is paid, while they ask more than 50% of the original price while reducing the number of the seats.
Buying S3D was a mistake, I can see that clearly. I wanted to support the guys in doing a good job even if S3D was available patched without having to pay for anything. I simply wanted to show my respect and pay. Then they stopped releasing anything for years, I thought they have bankrupted, or something. Now they come with V5 and ask for money from the people that have already paid. No, thanks. Complete disappointment
I am using Prusaslicer since S3D 4.0.1. Prusa also ignores many feature requests, but we can at least see a development, releases ... I really loved some of S3D features, but this attitude is a disrespect.
Well, Simplify3D, I wish you the same you do to your paying customers. Shame on you