Sure but I've got customers using ZyXEL, saving money and not getting what they really want. Its great to save money but if another vendor delivers the right features and the price is reasonable then its money well spent. I was pleasantly surprised to see that Enhanced OS is bundled with TZ100, TZ200 and TZ210.
Can you share some of the issues your customers have with Zyxel USG series units? Is it mostly related to SSL VPN support on Windows Vista/7?