"G60 is neither here nor there. It counts like classical if you're rated under 1600, I think... (at least by FIDE rules - USCF is a different organization)."
As a player I don't have any particular fondness for the time control, although I'd just be happy that it's longer than rapid. But for a spectator, this might be a good balance. Even 25 minutes or something is pretty fast for a spectator, things change so suddenly... 60 minutes would probably be pretty relaxed for most viewers, would be enough time for an epic buildup. Of course a lot of people still wouldn't want to devote 2 hours to watching a chess game, but I think chess always needs to have some epicness for chess to be its true self. In any case it seems like this time control hasn't really been tried as an attempt at showing chess to the public.
I recently started thinking about time controls. My local chess club uses 40/75, SD/30, 5-sec delay throughout (let me write 40/75, SD/30, d5). It used to use 40/90, 15/30, 15/30..., and adjourn if it got too late. The change from 40/90 to 40/80 (40/75 when using delay) and from a series of 15/30 time controls to a SD/30 time control were made over a period of years, always with the goal of getting home at not too unreasonable an hour in mind.
I *hate* getting down to just the five-second delay. Endgames were not made for blitz, and there are any number of ways one can lose--he hits the clock but the clock doesn't register his move, he has a lapse of consciousness for a moment, he has a muscle spasm and is late moving his piece; it just comes down to a furious shuffling of plastic pieces instead of actually thinking about moves. So, I started examining longer delays.
The problem is, in order to use a longer delay--say, SD/20, 20-sec delay--you have to cut down the time available for 60-move games or else add too much time to 80-, 90-, or 100-move games.
As it turns out, all solutions I can think of have problems. Adjudications? Nobody wants them. Adjournments? My choice, but of course players can use computers to analyze adjourned positions. Sudden-death or game time controls? Then, because you get less time per move on average in a long game than in a short game under sudden-death or game time controls, players who play long games are punished for it by having less time per move, on average, than players who play short games--which may mean that very positional players are punished for their playing styles--and when you're matched against a strong player against whom you must think and against whom a game is apt to last a long time if you play well, you get less average time per move than when you're matched against a weak player whom you can beat easily and quickly. My own choice would be to go back to 40/80, 15/30, 15/30... + adjournment system, since then you always get at least two minutes per move--but many people complain about adjournments.
I don't see a problem-free system for setting time controls.