Good write up although I've a few points to make:
Not sure how the NX got in that survey given it had only just come out, reliability is yet to be known however the RAV4 it is based on seems fine along with the engine and drivetrain from the ES250h in the US.
No first year tax but you will be paying £100 per year for anything other than the 2WD SE model.
Economy reported first seemed very poor, although owners are now quoting over 40 mpg after adjusting their driving style, engine run in and the warm weather. Still this isn't much better than an RX450h which has a much more powerful and larger engine and is a bigger vehicle too.
There is the 200t option for those who want more performance, at the expense of higher road tax. If you do want a noisy diesel then a RAV4 will save you some money for what is essentially the same vehicle with an inferior interior.