Sorry, that you too had a disappointing E70 experience. Both my '07 3.0si and '08 4.8i were truly miserable. Don't listen to the others

talking about passing power, or superior brakes or tighter suspension...a lot of us realize and understand that reliability and peace of mind are SO much more important that being able to race around on the highway, or beat someone on the onramp. Yes, the BMW Diesel X5 has more get up & go, but the ML Diesel is MORE than capable of passing, and accelerating briskly. The 2009 X5 Diesel weighs 5225 lbs and does 0-60 in 7 secs. The 2009 ML weighs 4974 lbs, and does 0-60 in 8 secs. So, the 1 second faster to hit 60 mph, might not be that important, if your X5 is always in the shop. I love BMW, but the past few years, Mercedes quality is above BMW. You will love your ML. It might not look as aggressive, or handle the same as the X5 around a tight turn, but when you pass a Service center in your ML, it will be just that...passing it!! Congrats!
It's been more than 2 months since I dumped my '08 4.8i E70 for a new Full Size Range Rover. Besides the raw hp, and tighter brakes...there is nothing I miss about the E70. It's been over 2 months, and NOT one warning lamp for battery drain, oil level, DSC, SRS, Low fuel with a full tank, preset buttons erasing themselves, time/date erasing, pathetic A/C, maddening HVAC setting, vent distribution settings, bone jarring ride, beyond horrible transmission, etc, etc. I am not saying, nor would I say that The Range Rover or The ML are perfect, but they do seem to be quite a bit better than the E70. I still LOVE the way the 4.8i E70 looks & handles, but peace of mind and reliability take first place for me!