You should be glad that you do not live in Canada! Up here the navigation system does not include the energy screens, is just as poor when it comes to giving directions and is a C$3,000 option by the time you've included the taxes! The only redeeming factor is that it is a dealer installed option which after several months of complaining to Toyota I was able to get removed and the original radio reinstalled! They gave me a full refund. I now have a, Garmin portable NUVI unit that comes with maps for North America (Canada and US) plus most of Europe. I was also able to buy maps for Mexico (which they do not consider to be part of North America).
Another advantage of the Garmin unit apart from its far greater accuracy and more up-to-date database is that annual updates cost about $75 instead of the several hundred dollars that Toyota charges.
I agree a larger screen would be nice but this is compensated for by voice announcement of the street names, instead of just telling you to TURN LEFT it also adds the name of the street. This is very helpful when the streets are close together.
I have also found the ideal location for the unit is on top of the Toyota supplied ashtray unit that fits into one of the cup holders. The only exposed wiring is a short run to the hole in the side of the consul to connect to the forward power adapter.
The NUVI also has Bluetooth and I've set it up to recognise my phone and the wife's phone is tied to the cars Bluetooth system. This avoids having to keep switching phones which is required if both phones are tied to the car system, this was necessary before because both my wife and I drive the same car but each have our own phomes.