Land Rover Cars usually look good, however, the D5 is just ugly. That Land Rover Cars usually look good and this is also usually the only "positive" thing about Land Rover Jaguar.
1) Terrible Quality: During Warranty everything will be "fine" - you only have to go a few dozen times to your dealer to fix the "first" things, including many SW-Updates. However the quality will show its true face after warranty - if you think: "Now that is it, everything is fixed now, the next part will fail." On the D4 the Dieselengines like to fail between 150tkm and 200tkm - thats the same "Ingenium Engines" you will buy with your D5. There are failures in the D4 that are also known to D3 users for a decacde (e.g. elekctric Handbrake, Door locks, Air suspension ...) - I dont believe they solved all of them in the D5. The car is "just" to new to fail. Wait 2-3 Years and you will get the first customer experiences out of warranty!
2) Terrible Service: Before I will bring my car to JLR again (exception warranty issues) I would rather let the "Spice Girls" do the service. The JLR Garages are usually incompetent and like to charge you for things they never did - e.g. checking the car properly.
3) High prices: I know that a parking sensor costs less then 10€ when sold by the supplier. At JLR you the part for approx. 100€ if your parking sensor fails (in my case about 4 out of 6).
4) No fairness from JLR side: A failure of the car at 105tkm or 3years and 1month (1 month out of guarantee). You want to get a fair repair price from JLR - dont even ask about it. They will decline! You will rather get a Daimler new engine for your BMW for free before getting a 5€ part from JLR if you are 1day/1km out of warranty. At my car 4 of 6 glow plugs failed - thats just bad quailty. Now participations from JLR on this topic.