When making nearly any purchase, from a spatula to a welder, I research the hell out of it and then pretty much buy the best one.
I have to break up 12 x 25 feet of asphalt that's about 4 inches thick.
I can buy a proper barely used Hitachin on CL for $400 or something like this for $165. The Hitachi I'd have to sell which would be oh so much fun while the Mophorn would just sit in the corner. Rental is $90 per day and between going to get it, use it and return it, I've spent $200.
Mophorn 3600W Electric Demolition Hammer Heavy Duty Concrete Breaker
Which would you get?