In terms of end grain planing here's an illustration. This is Bubinga end grain, it's over 700mm long and a bit over 50mm thick.
I planed this piece with a selection of planes.
A Lie Nielsen plane with the thick A2 iron, a Record plane with a standard iron (I tried both laminated and non laminated Record irons), a Record plane with a replacement
thin Veritas iron in PMV-II steel (the Veritas iron is about 1.5mm thick compared with the Record iron at about 1.2mm, in this particular plane this iron drops straight in with no filing required), and a Veritas Bevel Up Jack Plane with a low angle PMV-II iron.
All the plane/iron combinations got the job done. However the standard Record irons were struggling and needed honing to finish just one end of this board. The laminated Record irons were better than the later non laminated, the difference wasn't transformational, but it was still much more noticeable than when planing long grain.
The A2 and PMV-II irons were capable of planing
both ends of the board on a
single honing. The Veritas Bevel Up plane with the low angle iron wasn't noticeably easier to work than a regular Bevel Down plane.
When planing long grain I find it extremely difficult to compare how long one iron lasts compared to another. You can always take one more stroke before honing, and the difference in effort and surface quality between any one stroke and the next are pretty negligible. But on end grain planing the difference is much more marked. You reach a point where, even with wafer thin shavings, you simply can't bully the plane through the cut any longer, and you just come to a juddering halt. Therefore, it's much easier to detect plane iron differences when working end grain.
Incidentally, staying with the comparison between standard Record irons and the replacement thin Veritas PMV-II irons. Here's the two different irons working a sweet planing piece of long grain Swiss Pear.
I can't detect any difference between them in terms of workpiece surface quality or in the shavings,
I've been using Veritas PMV-II irons for a couple of years in a block plane and in a Bevel Up jack. I'm happy enough with it although one thing I've noticed is that the wire edge is a bit different to the wire edges you get from traditional carbon steel or even on A2 steel. With PMV-II the wire edge feels less distinct and almost crumbly (or at least that's the case on my diamond stones), it's not a problem as such, but you need to pay more attention when feeling for the wire edge and consequently it's easy to hone more than is required. Personally I'd recommend that if you're only just starting out woodworking and don't have much sharpening experience then you might be better of learning on traditional carbon steel irons where the wire edge is as plan as pikestaff!