Comparison pic (left to right): Sideshow Utapau Shadow trooper, Hot Toys Umbra ARC Trooper, Hot Toys Purge Trooper Commander, Hot Toys gen 2 Purge Trooper.
Pros:
Great sculpt work all over, the airbourne helmet looks awesome.
Accurate weapon sculpt (rare for HT) and accurate (to game) size.
Kama has cut at back (there were worries it would be missing that split).
Nice weathering.
Pauldron is not pleather as far as I can tell (at first I thought the res section was pleather but feeling it I think it isn't).
Cons:
The visor is very dark when not lit up (which is most of the time). I would much prefer it either painted red like Sideshow or painted reflective metallic red like the gen 2 purge trooper.
Bicep ammo box fell off straight out of the box (usual crappy glue HT use, watch out, they are tiny pieces and will get lost easily)
Not many accessories and the stand uses a waist grabber (I get that kama would be awkward with crotch grabber but it would still be better for avoiding long term damage).
Now DC15 rifle comparsison:
(From left)
Sideshow DC15A (non movie prop/realistic Clone Wars), Hot Toys DC15A (non movie prop/realistic Clone Wars), Hot Toys DC15A (live action TV show), Hot Toys DC15LE (video game), my own DC15A (movie) and my own DC15A (live action TV show).
As you can see the DC15LE is tiny in comparison just like it was depicted in the games. This mold won't work for ROTS/AOTC figures due to the smaller size and extra attachment, so HT will need a new mould for accurate movie rifles. This rifle though (along with the Kenobi 501st figures weapons) does show that HT is willing to move past the unused prop/realistic Clone Wars weapons they usually use so it is a very good sign to me.
Overall I rate the Purge Commander a solid 7/10. Good figure with a couple small nit picks (QC, dark visor) but also a couple great steps forward for HT (accurate weapon, less pleather use)