We have it on our X3 and think it is great. I don't see any downside to having it if you don't mind the extra expense, and it does make parking and other low-speed turning activities a little easier. The X1 is a relatively lighter vehicle, so I suppose some might think steering enhancements aren't really noticeable, but I heard the same thing when I was moving from an X5 to an X3. Bottom line: I say you should keep it.
MY2007 650 conv | Stratus Gray | Black Pearl | HUD | Night Vision | Sat | Logic 7 | RT Traffic | Cold Weather | 6-speed Euro Delivery completed 9/15/06
MY2008 X3 3.0si |Monaco Blue| Sand | Sport | Prem | NAV | Auto | Euro Delivery 9/21/07
2004 X5 4.4i (retired)