If it's $1000 for brand-new, that's not bad. It's a fully suspended kart with a 150cc motor rated at just under 9hp. My friend Ed's kart is similar, (with the same motor/cvt) and it would do 35mph with two adults in it. That's not too bad. The motor does well, just baby the heck out of it with clean filters. oil and gas. Ed's burned up because the mechanic he took it to for a tune-up didn't fill it back up with oil. Ed gave me the motor and even with all the abuse it had gone through, it would still start and run- just put out a thick cloud of smoke, though.
I think you got your money's worth. There's a lot of really bad jokes for around $600 that don't even compare to what you got.
The carb can benefit from a proper rejet for drivabilty reasons, but I think you'll be happy with it.
Look up "Ed's Black Terror of Death" and you'll see where he got it up to top speed and jumped it. Pretty neat.
