Hi!
I've been using Sound Forge since v5.0 (Sonic Foundry).
I've bought v15 & v17 from Magix.
However, I've always complained about the fact that both versions are hi-DPI incompatible! (They look bad on 4K displays).
Recently Boris FX bought Sound Forge, Vegas & ACID Pro from Magix. Maybe they'll improve Sound Forge!