Husqvarna 315x worked about 500 hours on my lawn last season - getting ready to install it again (maybe early May) for this season, probably will change the razor-blades before that..
Hopefully in addition to the blades only the Li-battery needs replacement at some (distant?) point in time...
Cost about 2k, so it needs to work at least 10 summers for this to make sense. Only major problem last summer was a rabbit chewing on the guide-wire..
No camera in the Husq., but the android phone-app does show if it's running or charging, has the GPS track, and allows adjusting the schedule.
So far quite happy with it