I have a 2013 X3 Msport w/ DHP. if you like the Msport cosmetics than get it but just know the Msport configuration has almost zero to do with ride and handling although Msport wheels and tires do make a difference to a degree.
So what it than comes down to is whether you want the latest and greatest suspension technology or not. If you want it all than you need to option in DHP which will always be active and working to control suspension dynamics across the full gamut of bumps, g-forces etc. I drove X's with and without and found DHP yielded what I'd describe as a more high performance feel in terms of how the suspension adjusts to hold a line thru sweeping semi bumpy turns. DHP does not = stiff ride.
2013 X3 35i M Sport / PREMIUM / DHP / TECH / COLD 1 & 11 / AW / OYSTER