To each his/her own. I never have felt the need to use Desination Assist. As far as Safety Connect, I have AAA and usually travel in well populated areas. I believe Safety Connect also has a "LoJack" function, where Lexus can help locate a stolen vehicle after a police report has been filed. I once had a car equipped with LoJack stolen. The car was found, but with a lot of damage. I would have been better off if the car were not found, rather recapturing the vehicle's value through my insurance.
I find that I only use the Enform Suite to access Pandora, for which there is no longer a renewal charge. So, I guess I'll also be tearing up that Enform bill when i get it in a few months.