Aren't people also complaining about the 2GR about it being old?
I can't speak to power, but on my test drive, it seemed okay to me, but I also don't have an X5M or whatever to compare to. Fuel economy to me is subjective, so negligible. Reliable...Hard to say but I'm angry that my Toyota hasn't broken yet. Wish I had a BMW for that crazy GF experience.
I guess you can't have it all with Toyota.