I thought I would add my comments, although I know I will probably take "Flack" for doing so, but this guy is asking for honest and objective views, so here are mine, born out of my own personal experiences ; -
I`ve had my car since January 2013. (184ps SE Nav 6 Speed Manual). The Antara is good to drive, very comfortable, performs well, and is a great "mile muncher". I have experienced one or two minor "niggles", of little or no real consequence. My Fuel Economy is basically cr#p, mainly due to the issues with the amount of DPF Cleans or "Regen`s" my car has had, and still continues to have. My Regens are now less than 200 miles apart, regardless of how I drive the car, which for me, makes it basically unusable. My other half has now flatly refused to go near it, and as a consequence, I have bought her a small car of her own to use, while I wait for my new Mazda CX5 Sport Nav, 165ps Petrol Engine car to arrive, as I am a Motability Scheme Customer, and have asked for a change of car on the scheme, due to the DPF issues I have experienced. (Motability did not object to this in a any way). All of this has come at no small extra financial expense to myself, and since first owning my car, I have done nothing but battle with both Vauxhall, who`s Customer Service is rubbish, and other Agencies, in an attempt to find a solution to the DPF problems I have experienced, but with little or no real success, hence my throwing in the towel. With hindsight, I would have not touched an Antara with a barge pole, and would have gone for a Petrol Engined SUV straight away, such as the CX5 I now have on order, or even a Skoda Yeti. (Laurin & Klement 4wd, Petrol 160ps version, which has literally just been added to the cars available on the Motability Scheme). In fact, unless you are doing mainly fast Motorway and/or A Road driving, and covering in excess of 15k a year, I wouldn`t consider any kind of new Diesel Engined Car, as you are likely to experience problems with all/any of them, as they all have Euro 5/6 DPF`s fitted to them. So, on the whole, a VERY unsatisfactory ownership experience.
Sorry to sound negative, and I`m not looking to pick an argument with anyone over this, but you wanted honest and objective comments, and mine are as above !!.