Features present are those expected and required for an SMB network security offering. Agnitum describes their firewall as "encompassing a unique intrusion detection system", with "packet- and application-level filtering", and "embedded code protection". How the IDS is "unique" isn't clear to me, and an in-depth examination is definitely beyond the scope of this review. All modern firewalls are expected to have protocol, packet, and application layer filtering, and Outpost does provide this.
Using "USB access lockdown to guard company's digital assets" will surely depend on your business information security policy, and practically upon the needs of the business for users to frequently use USB for data transfer and storage.
Automatic "hands-free updates" are noted in the feature list, and it does appear that Outpost can make updating your enforcement points an easier task with this feature.
Their noted "Safe data repository" feature didn't stand out with me as something I wanted or needed with this type of product, but it's definitely a differentiating feature.