Some info to share:

Sliding AC - slow, single speed, no backup, but more durable
Sliding DC - faster, dual speed(slows down b4 stop), option to add backup battery, for lightweight gate

Swing Arm - moderate speed, supports heavier gate, usually comes with backup battery
Underground - moves faster, IMO the motor is more lasting, only certain PCB supports backup battery, comes with a lockset, not suitable for folding gate


USUALLY a complete set comes with only 3 remote controls and a year warranty(by manufacturer). Anything beyond that is maybe from your supplier themselves.

9/10 brands with the 'Italian', 'Germany' Technology or so is actually made locally.