We have been to funnelz a few times in as many years, and the price has always been steep. Almost $11 with tax, flat rate no matter if you stay an hour or six. Who on earth would stay long enough to get their money's worth, I can't fathom. At least a couple years ago the equipment was newer and the place was cleaner. Now, it is absolutely filthy, and the cheap interlocking foam (also filthy) covering the floors is completely worn out, risking potential injury in some spots.
The snack bar sells your usual processed garbage, with "no outside food allowed," so if you do ignore my advice and bring your children here, be sure to feed them beforehand.
I would give this dump a zero star rating if I could. My advice is to avoid it at all costs.