I've owned my D-Max for just over a year. Since buying it I've added a snorkel, bullbar, winch, rear recovery bar, oil catch can, and LED driving lights.
I find it comfortable, quiet in the cabin, and economical. The transmission and clutch feel light and solid at the same time. The two glove boxes are handy with an extra 12volt outlet.
The lighting is good but the reverse lights leave a bit to be desired. I've added two LED lights to remedy this.
My major criticism would be the air conditioning. On the hottest days (40-plus degrees) it has to be run at maximum constantly but does keep the cabin comfortable. And my only quibbles are the gear stick throw could be a little narrower. The placement of the transfer case switch, being a large silver knob on the centre console is a bit annoying and could be accidentally activated by a curious child. This would only be a distraction as the transfer case can be switched into 4H at up to 100kph and is locked out of 4L unless stopped. I would have preferred it higher up on the dash, near the steering wheel.
While many 'professional' reviewers focus on the lack of gadgets and 'connectivity' I find this to be a bonus. I was looking for a basic, reliable, capable, uncomplicated ute and that's what I got in the Isuzu D-Max. Better yet the purchase price comes in well under the nearest competitor. I recommend this ute to anyone who doesn't want to pay a motza for a brand or who isn't interested in crap like OEM GPS, seat warmers and built-in massage seats.