Others say...

"Disappointed"
I recently purchased 3 ODST Marines from Amazon. The good: They look great. The bad: That's about it.
Two of the marines had defects- one's hand fell off as soon as I opened the packaging, and the other's elbow was completely backwards. That wouldn't be a problem if the figure was a Spartan, but for the marine it completely ruined the figure because the elbow joint only bends. In the Spartan figures, they rotate, so you could just twist the elbow around.

Even the perfect one had issues. One, the hand was too small to hold the gun, two, the articulation is TERRIBLE compared to the other figures, so the figure can only hold the battle rifle up at waist level.

Don't get me wrong; I really like McFarlane. But for the ODST they did a less than stellar job.

"Awesome little guy"
I love mine. The Mcfarlane Halo 3 toys are not as durable as many people would like. But they make up for it in detail and accuracy to the source material.

This ODST is arguably my favorite of the bunch so far, neck to neck with my steel colored CQB Spartan that I love to run around with in the game as well.

The detail, and paintjob is just superb. And like others have said, his scale in relation to the Spartans is great. It's really nice to see the regular UNSC soldiers represented in a set. Without looking so... dorky like in the old Halo I figures from years ago.

Hoping to get some UNSC pilots, regular troopers, and hey... who else wants one of those awesome female Dropship pilots!!! =)

"nice for display, but not much else"
I love the detail on the ODST but the first time I tried to pose him with his BR, which is not easy considering how small his hands are, his one hand snapped off. I've had this problem with only one other figure in my collection: Halo 2 active camo Arbiter(leg broke off) Also a couple of armor pieces come off way too easily. :-\ Maybe its just the one I got.

"An undeniably cool toy"
I had already bought a couple of McFarlane Halo figures before I bought this one, so I already knew that the articulation and presentaion (armor detail) of the ODST would be pretty good. However, I've found that each McFarlane Halo figure has their own unique fault to them. Some can't stand up on their own very well. Others have limbs that fall off easily. And others have armor plates that should just be ignored, they fall off so quickly. The fault of this ODST figure is that he can't hold his weapon very well. Sure, he can hold it at his waist or mid chest, but he can't maneuver his arms around the chest plate so that he can look through the scope of his battle rifle. There are other flexibility issues in his waist and legs, and they are all because of the armor. This is bothersome, but the way that the ODST is presented, with incredible detail, including his height which is a head shorter than his Spartan Super-Soldier comrades, is very impressive. Overall, this figure has some articulation issues, but is an otherwise incredibly enjoyable action figure and desk prop.

"Great Collectible"
As Comic Book Guy would say, "This is not a 'toy'...it's a scale model replica."
Yet even given that, the McFarlane Halo figures are becoming notorious for their lack of pose-ability and general difficulties in gun-holdingness.

Such qualms aside, this is an amazingly great looking figure.
It trumps the Spartan ODST by a mile in regards to detail/"coolness."
The accuracy of the figure is not appreciable in online photos; had I not seen it in person, I'd probably slough it off in favor of another Stalker.
This is quite possibly the pick of the litter in this release.
I've seen almost all of them in person - this is a ringer.