As far as any free airport lounge/waiting area goes, this is probably as good as it gets. I think they may have cut down on their amenities since Porter first started out (my friends who used the airline in its early days spoke of Mac computers for use!), but you won't see free snacks and drinks and comfy seating areas in ANY other airport that I know of--if there are others, don't hold back! As far as I know, there is no free booze pre-boarding but there is on the plane. In other words, you're not allowed to board drunk, but it's OK once you're actually ON the plane. Got it?
Maybe I sound like an old granola-lady for saying so but I really wish they would put more cookies in the packs as the wrapper is pretty wasteful for two tiny cookies which are uber-buttery (probably a large part LARD, but still yummy!). If you have a long way to go and are on a serious budget, load up on their ultra-salty almonds. I'm sure the sodium will keep you bloated long enough that you won't need to eat for hours on end or feast on the snacks and drinks on-board.