I'd rate it about the same as Mlambonja, perhaps a little steeper in places. More difficult than Organ Pipes. Ratings are pretty subjective but I did find it surprisingly steep and sustained (perhaps my initial expectations where that it was easier), though there is nothing technical about it. The path is generally good, though it does have some eroded bits. It does not have the nasty bushy bits that Mlambonja has - once you leave the river on the approach the climb starts swiftly onto a grassy ridge.
It is a major smuggling route. The well defined trail continues on at the top, eventually meeting up with the trail coming down from "Smugglers Pass" (at Ndumeni), at the entrance to Yodlers Cascades. In my view it belongs to the Tlanyaku smuggling corridor - one of the most notorious in the Berg, to which Organ Pipes also belongs. You may want to avoid doing this during the peak smuggling season. Anytime now up until about January should be relatively quiet still.
Schoongezicht Cave is an excellent place to start from, as well as the campsite a bit further up the valley (the trail splits just before this - the right split bypassing the campsite). For camping on top, explore the areas north of the pass on the slopes coming down from Little Saddle (some co-ordinates listed in the article
Troubled Times at Cathedral Peak) - this will get you away from stomping gum boots.
Have not ventured over Eastman's Ridge from there yet, though that trail is visible. It is quite a climb, a mini-pass in itself. My impression is that the trail along the river approaching this climb may be a little vague.
Will post GPS data for Tlanyaku when I get a gap.
Hope this helps.