As far as I remember it is for 60 minutes.
Well, there's a lot of nice things, like entire shell with tcpdump and else. 🙂
But then Extreme should have good audit log to validate warranty claims.
IMO it is more probable to get couple of commands to EXOS CLI, like recently diff has been imported. And more extensive debug section, that would be useful a lot and also would help GTAC take over smaller amount of cases.