Have a Nov 2011 build D22 Navara from new, 115k's on the clock with no warranty claims.
Had a SsangYong Musso 4WD Ute before the D22, loved the Musso to death literally, so purchase of a new ute was not planned, so price was a very big factor.
The Manhindra was priced right, had all the comfort features and cruise control as standard, good headroom and rear seat leg room, only issue I had was the availability of assessories such as snorkle and Canopy, so went with the D22 and agreed it is somewhat crampt in cabin space unlike the Musso and Mahindra and other Dual Cap Ute's, especially if you have people sitting in the back like my 6" son on long trips.
I can't fault the D22. Its been a solid little ute and the only comfort feture I had added has been cruise control for those long trips, which for me are usually over 600klm in a day, which before the cruise control I was finding my right leg cramping up.
Main assessories I have added:
Bullbar/winch.
Canopy/roof rack system.
New Audio/GPS Navigation System.
UHF CB, Amateur VHF/UHF Radio, Amateur HF/VHF/UHF Radio, Trunk Radio Scanner.
Diesel Performance Module.
Cruise control
Jayco Dove Outback Camper