Companies deploying VPNs internationally might face some restrictions on key length. Although the government has lifted most restrictions on exporting strong cryptography, you might still need to obtain approval. Check with the US Department of Commerce Bureau of Industry and Security's Commercial Encryption Export Controls (http://www.bxa.doc.gov/encryption) for specific restrictions that might exist for your deployment.
They even offer the most generous simultaneous connection count, with six simultaneous connections through their network, where everyone else offers five or fewer. NordVPN's network isn't as large as some of their competitors, so if you're trying to obfuscate your tracks, you might want a company with more servers. Otherwise, this company is clearly providing a winning offering.