Motorguide xi5 or Minkota terrova?

Looking at the xi5 and terrova. Both in 24volt, 80lb and 54-60" shaft with spotlock my primary focus. I have a garmin echomap 93sv and lvs32 up front and garmin striker 73sv at console. Motorguide sells a reconditioned xi5 for about $600 less than both units at new prices of around $2k.

Any advice on which is the better brand/buy is greatly appreciated. I mainly want to upgrade for the spotlock usage. Have an older model Tracker 175 Pro Team.