In my attic there is a dusty box with a multi effects unit from the 90's.
The reason I stopped using it is that it is not that the fuzz doesn't react to the guitars volume pot like a Fuzz Face or because the Tubescreamer was a TS9 not an 808. It was because having a single box with all of your effects in is a faff to tinker with. I like the dedicated hardware of my pedals, I like having the right number of knobs. I like being able to turn off the fuzz but keep the delay by stepping on the fuzz switch. I like being able to run the TS before or after the fuzz and to see it happen. I mentally am much more at home with little boxes for each stage, it is like a real world flow chart!
The reason I stopped using it is that it is not that the fuzz doesn't react to the guitars volume pot like a Fuzz Face or because the Tubescreamer was a TS9 not an 808. It was because having a single box with all of your effects in is a faff to tinker with. I like the dedicated hardware of my pedals, I like having the right number of knobs. I like being able to turn off the fuzz but keep the delay by stepping on the fuzz switch. I like being able to run the TS before or after the fuzz and to see it happen. I mentally am much more at home with little boxes for each stage, it is like a real world flow chart!