Yes it is, but it has gotten way better since the introduction of SDD, and they are constantly improving it. It definitely needs a good internet connection and its good to keep the 'as built' and 'configuration' files up to date. I would say about once a year each of our SDD machines need to be totally wiped clean and have all of the SDD software reloaded in order. This is usually because of a failed software download.
Car Camping Collective founding member and Treasurer