Well since no one has posted anything, I will throw my thoughts here..
I had been introduced to Seco Carboloy some years ago, namely their SuperTurbo and Quattro Mills.
I LOVE THEM!I was not a believer at first until their Rep came in and worked with us. I know, those damn Reps say anything, but this was an exception.
With respects to the Quattro Mill, it has very limited depth of cut, but boy when it comes to hogging off material and not pulling a part up I was impressed. Not to mention exponentially longer tool life then other tooling.
SuperTurboI have fallen in love with this tool since the first day I used it. Primarily I use the 1" diameter tool and sometimes the 2" for facing operations.
The great thing about this tool is how I use it. I use it for Plunge Roughing in steel every chance I can get, then with the speed factor, I am currently buzzing around a 1018 part at 5500 RPM and 150 inches/minute(the machine can't handle the recommend speeds/feeds or it would be faster).
In our shop we use alot of 2" for finishing facing operations and then use the "Used" inserts on the 1" Plunging/Speed Factor roughing operations. So basically as far as tooling costs go, we have absolutely no tooling costs when we use the 1" because it was basically paid for use on the finishing operations used previously.
I would caution, the Nano Turbo is not very good. Stay around the 1" diameter on the SuperTurbo. The web of the body gets very small and blows up. Believe me we worked with our Carboloy Rep to make these smaller tools work per their recommendations, needless to say the Rep bought a couple tools that day...

There's my opinion.
cncmike