First and second are the biggest changes but accelerating from a cruising rpm should feel better too. Maybe check your hose clamps for boost leaks.
When will people realize that peak hp dyno queen bragging #s aren't the be all end all factor in performance.4 peak hp would normally make anyone say whatever with any other tuner. I see where it does fatten the torque up, but what's it gonna take to see some real HP numbers? I guess this is a characteristic of small displacement with a turbo.