Not sure if he bought his 07 or not but I own one. went from a 3 series to the 07 LC and haven't regretted a minute of drive time... well I do miss the 3 once in a while but love the LC.
On to a little more objectivity, I bought a dealer owned demo driven by the owner so it came with everything except for the Rear DVD.
- The interior is very comfortable but it does look aged. They've swapped manual controls with more electronics but by the arrangement and ergonomics you can see that it wasn't designed with the electronics in mind. That being said, everything works as designed. I'm just fearful of the integrated Nav, DVD, and climate control panel quitting on me - wish they had the climate controls duplicated.
- The rear seats are completely removable, i typically have them folded up rather than removed, haven't seen much of an impact on mileage.
- I typically get 13+ in city driving and 17+ on hwy. I've seen 19+ on hwy when I've stayed under 70mph.
- I don't have any mods on it yet, will give it a few more years before starting that, the off roading is being handled by my scarpas and komperdells for now

- Haven't had any issues with the AHC yet, I am planning to get the extended warranty before I'm out of the warranty period.
- I too was looking at the LR3 but decided against after reading about the electronic gremlins and reliability issues. Still think they have the go-anywhere ability though - I'm not comparing them to the LC in off-roading in any case. just a general statement.