Sorry mate don't have any experience or heard much of the N1 2000 Spec.
Just did a search and found that they're designed for fast road use and have 13 step combined bump and rebound adjustment so you will be able to soften/harden them up.
If they are like my N1 Pros the rear adjusters are on the strut tops in the boot and the fronts are on the bottom of the dampers behind the wheel hub.
They're little wheels, turn right harder, left softer.
As a manufacturer I've found A'pexi to be extremely good.
I'm running A'pexi exhaust, induction as well as suspension and the build quality is up there with the best.
Performance/handling gains are very good especially with the coilovers.
Their suspension is quite expensive which might be part of the reason it's not so popular outside Japan and the US.