I have a three year old Yeti 4x4 diesel, I was very happy with it until two weeks ago when the gearbox went. I have just got it back today, thankfully covered under warranty but still not impressed that I needed a new gearbox after 35,000 miles.
Maybe I got a Friday afternoon job.
Be aware that you need to do a reasonable mileage a year with a diesel or you will be spending lots of money on a new catalytic converter. Sorry if I am teaching you to suck eggs.