I used HB for years before Garmin came out with Livescope. It is hard to beat the new Hp units for display. But I doubt it is worth $850.00 more than the Garmin unit.
Before i spent $1600 for an HB I would consider getting a 93sv plus the livescope unit. It will cost you around $2300.00 but it is much better for fish structure and brush piles.