Pros: 1) Stainless Steel construction = threads that wont strip like Aluminum lights. Excellent machine work too.
2) Big 20mmx20mm reflector should gather and concentrate more light than smaller 1*CR123A lights.
3) Shorter than pictured. Body only 85mm long without protruding tailcap cover. Replace tailcap cover with sku 7321 and it tailstands.
4) Brass pill accepts standard sized 17mm PCB driver .

Cons: 1) heavy, Heavy, HEAVY! Noticibly heaveier than the solid brass (chrome plated) UltraFire WF-C6S which even though is one of the smallest clicky 16340s, was also one of the heaviest until this one came along.
2) Not the nice mirror finish shown in the DX pics. The one I received has a burshed steel fisish. :(
3) Holes in tailcap too close together to replace the wrist strap with the same size split-ring (#4?) that fits most other lights like the SH-033 and the UF C3.
4) 5-mode boost driver is under powered, only drawing ~700mA from the battery in high mode. Looks like its the same driver as in the new XRC based AA/14500 SS UltraFire C3 and the CR2 Aurora SH-033.
5) Replacement switches and reflectors for this light are not presently available from DX (as opposed to the switches and reflectors found in the C3 and SH-033 which can be bought here).

Other Thoughts: In my opinion this light should pack more of a punch than the smaller and lighter Aurora SH-033 and unforunately, it does not.
The R2 emitter in this one does not have the purple hue or output power of any other R2 that I own. Output should increase with a more powerful driver.
If it had the mirror finish shown in the pics and if DX had an SMO reflector available for it, I would really like it a lot, after a driver swap.

Bottomline: A very solid (heavy) stainless steel light with very ordinary output despite its larger reflector.

Pros: Five modes - the usual high, medium, low, strobe, SOS. It does a real SOS rather than SOSOSO which many do. It has mode memory - it comes on in the mode you last left it in. The build quality is exceptionally good. I've not felt such nice threads on a light before. Mode memory is a biggie for me. Can swap heads with the Aurora SH-032. sku.32563

Cons: Stainless steel is not as good a conductor of heat as aluminium. It's pretty big for a CR123 light, and it would be nice if it'd tailstand.

Other Thoughts: Excellent build quality, plenty of light. 33 minutes runtime on high, 1hr 24min on medium, 9hr 36 min on low. Well-chosen levels

Bottomline: I like this one a lot. Recommended strongly.