This^^^^^^^^^^ I've had mine for a few yrs now= awesome. Their sri is awesome too,,,,,,,I installed a steeda tri-ax STS on my 07 ST. Install is very easy... 20 minutes and hand tools. At first the shifter was T.I.T. tight (and yes, I was liberal with the lubricant) but after a week or so it loosened up a bit and now one flick of the wrist glides right into gear with a reassuring "click". Overall, I would recommend you go for it!
Guess it depends on the knob your using^^^^^^ The oem ST knobs fit great & work great too,,,,,This is a bit of a late contribution, but I have to say that the Steeda shifter is a good product. I've had one for two years now. At times, the shift effort seems a little bit high; so, to make the shift action somewhat lighter, I installed a thick washer-like shim over the shaft inside the shift knob in order to raise the knob up a bit (making sure there was enough exposed thread for a solid fit).
I like the stock st knob over the steeda one.Yes, the height of the knob makes a difference too. I think the Steeda knob I have is kind of flat-topped and is shorter than the stock knob. I remember that the original knob did not fit over the new collar without modification, but it might work with a shim in place. I might just go back to the stock knob.