Has anyone had a bad experience with the Harken Mark IV size 3 furler?

[Methersgate]

I have been narrowing down the choices, and, as so often in sailing, the most expensive one for the size appears to be the best, so before I write the horribly big cheque, I thought I should ask if "any person knows cause or just impediment wherefore" I should not be parted from my life savings?

Thanks in advance.

Boat is a Nicholson 55.

[Paul L]

Harken makes good gear and stands behind it.