Maybe this will help frame my conversion a little:
I’ve had the soffit traps for a very long time, but I’ve been steadily adding mondo traps after I bought this house. So I went from relying almost completely on the soffit traps, which are great, to spreading the love around.
Now that my room is nearing completion, I am thinking that a combination unit in their place, with additional absorption thanks to the stacked up tri-traps will move things in the right direction from where it is now.
If you have nothing and know you need bass traps, the soffits are phenomenal but the tri-traps give me the option to add a little more diffusion surface whcih I know I need.
This isn't so much about product quality but total balance. I can't tell you how much they improved the sound of my speakers in a room and how much bigger my speakers sound thanks to them.