TomTom ONE v4 Satellite Navigation - Western Europe

I bought the TomTom One 22 Western Europe for my wife to use in her new car. She travels and lives in Italy and the UK, so the Western Europe edition was essential.
I have been using TomTom software for 5 years now, and the newest version on this product is excellent - very easy to use.
Overall, I am very pleased with the purchase - just one technical problem that I am technically able enough to resolve, but might have presented a significant problem to a non-technical person - see below.
Now, a feature list, and some pros and cons to help you decide whether you want to buy it.
Features I like:
- windscreen mount (integrated but detachable) is very effective (strong suction) AND attached to the TomTom. Just one small thing to carry around, and no tell-tale mount left in view of thieves in the car
- very loud clear instructions from the large speaker on the back of the device
- around 3.5 hours from a charge when new (should improve over time, as the battery "seasons")
- automatic day/night colour scheme switching using light sensor
- "Help Me" feature which lists emergency services, hospitals, roadside recovery etc. for your current GPS location
- TomTom software, which I think is the best and easiest to use of all the SatNav products on the market

Pros:
- small, lightweight, single unit
- TomTom Home software is very easy to use, and handles all software feature updates, backups, etc.
- very high visibility screen even in strong sunlight
- satellite location data ("ephemera") downloadable weekly from TomTom, speed GPS acquisition up to just 5-15 seconds, even indoors
- small and discrete enough to use as a handheld device when walking
- FAQs and support on the TomTom site enabled me (technically competent person) to diagnose and fix the software problem below in a few minutes
- good build quality
- touchscreen stays remarkably fingerprint and dirt free, with anti-glare coating

Cons:
- was very difficult (and scary, as we thought we'd break it) to detach the windscreen mount from the SatNav itself the first time (a doddle when we figured out how, though)
- supplied manual is practically useless (although a much more comprehensive one is available online via TomTom Home)
- no mains charger supplied (purchasable separately); USB and in-car leads only
- the first time I connected to TomTom Home a software update was available, which resulted in a flashing red cross on the screen and a completely unusable device. (I was able to fix this, by deleting all the system files, after backing up, but it wasn't a trivial task). A new software update was released almost immediately afterwards, so I think there might have been a software problem...

Tip:
- as soon as you buy a SatNav, back it up onto your computer before you use it!

Summary:
I would recommend this device, with the maps set you actually need above all the others, including the widescreen (XL) ones. You don't get any benefit from the extra width in my opinion, because you're not looking at them for long enough to see anything except the data at the bottom or the middle of the map!