i can only speak for the F60DAB....
Amazon reviews are ups and downs...lot of crazy people who complain since they dont know how the unit works. No trouble with GPs. Type in things manually....no problem. USB works. Android an mirroring works....use the usbcable. There is no OFF button on the unit, but you can turn it off in the options (turns on but silence). Handbrake error = wrong wireing from the user. No bluetooth problems...etc. Latest firmware versions solves alot of errors and faults.
On the latter updates its more bugfixes then new addons...but thats okay
Regarding the maps there is usually 1 free upgrade after activating the unit for the first time. Code if im correct, But this might be overdue for you i think. But you can always try 
check here for more info:
http://pioneer.naviextras.com
Since this forum is sometimes slow on replies and such you can always check out :
http://avichacking.slack.com
signup here: http://avicsignup.herokuapp.com
Most of the "gurus" hang out there and i randomly pop-in for some help and answers
"I think I am right in saying the F60 can do tilt screen (handy for me as its very low in car), has capacitive touch screen which I would really like. - YES, some. cant remember if it both ways
"ONE question I can not find the answer to is whether it has a detachable fascia/removable screen for security? - NO
We all know Pioneer want to sell new units, but who doesnt? But there have been fw releases 
Ver 1.15 (July, 2017 Update) Reduce noise when playback iPod Add QWERTY keyboard in AppRadio Mode *UC model only Fix the malfunction at "Artist Alert" event *UC model only
Ver 1.14 (January, 2017 Update) Improve the virtual keyboard problem on iOS 9.x. Fix the incorrect indication of names on the screen at Bluetooth Handsfree mode in Thai. Fix the music display problem on iOS 8 and later. Minor bug fixes
Ver 1.11 (23 November, 2015 Update) Support for AVICSYNC REMARK: If you don’t intend to use the AVICSYNC features then it is not necessary to install this update.
Ver 1.07 (15 October, 2014 Update) Minor bug fixes.
Ver 1.06 (2 October, 2014 Update) Apple CarPlayâ„¢ support for iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, and iPhone 5 iTunes® Radio support for iPhone 6 Plus, iPhone 6, iPhone 5s, iPhone 5c, and iPhone 5 Support for MPEG-2 playback (support for *.vob files on USB and SD source) Improved Rear view camera support Minor bug fixes.
Ver 1.04 (9 September, 2014 Update) This firmware will allow the users to purchase Speed Camera data and Optional TMC services from pioneer.naviextras.com
Ver 1.04 (12 August, 2014 Update) This firmware is required to use pioneer.naviextras.com 2nd Camera Switching via 'Map' button Minor bug fixes.