Since I don't know how to properly explain hop-up:
Probably similar or exactly the same device in use on these new pellet guns.
As an air pistol, it will be accurate for short distances...it's only shooting ~330fps so it's fairly low velocity compared to most bb rifles (most have minimum 350fps) and even some other bb air pistols. I've found that pellet guns have a much higher velocity compared to most BB guns...if you have a small backyard or you're shooting in your basement you've picked a decent starting pistol. If you have a big backyard, or big place where you'll be shooting...you may want to reconsider your purchase and get a different air pistol or rifle.
I don't have any experience with this specific gun, or this new line of hop-up air pistols, but I'm sure this gun will be great for plinking...and some close range target practice.