It's probably at the perfect height in terms of handling and not causing any issues with scrubbing guards and firewall but it's not super low that's for sure.

That highlights the benefit of doing it yourself so you can weld on the coilover section as low as you like!

My minimum height is limited by the offset of my wheels. I can only wind the lower perch down to a certain height before the perch gets too close to my tyre/rim. It can go a lot lower than your pic though.