Here are the main
facts from the catalog:
Size: 83x116mm w/o lens-hood = nice size

21mm shorter than the Sigma
150/2.8 but same length with lens-hood mounted
Weight: 810g w/o caps and collar but including lens-hood = very "bearable" but only a little lighter than the Sigma
150/2.8
Optics: 14 elements in 12 groups = much too much for a fixed focal

but 2 lenses less than the Sigma 150/2.8
Closest focus distance/max.magnification: 31cm / 1:1
Filter-thread: 62mm = small and cheap
VR = very good
AF-S: does work on D40/x/D60-bodies

, manual-focus override by turning the focus ring
Covers
full frame/FX or smaller = normal
Comes with cheap
pouch
Price: around 740€ new = quite expensive, 160€ more than the Sigma
The front- and rear
lens-caps Nikon style
Distance information is relayed to the camera, so the Nikon body can do all the advanced exposure-related stuff with this lens
Aperture ring = no, just like any Nikon G-lens
lens-shade included and revertable for transport
Tripod-collar = no

well, it's not such a heavy lens that you really need one.
Limiter switch: Yes, with two positions: "full" or 50cm to infinity
Sealing: yes

unlike the Sigma macros
Alternatives are all without image stabilization

:
- The
Sigma 150/2.8 macro: a very good choice, see my
review. It has 45% more reach thus might be too long for landscapes. On the other side gives you a greater distance to your subject
- The
Tamron 90/2.8 Di SP macro: cheap and good, see review
here
- The
Sigma 105/2.8 EX DG macro: cheap and good, see review
there
- The
Nikon 105/2.0 DC: excellent sharpness plus Defocus Control plus f/2.0 aperture. But only 1:7.7 magnification and 20% more expensive

_________________
Thomas (beware: Nikon-fanboy and moderator!)
My Lens Reviews,
My Pictures,
My Photography BlogD800+assorted lenses