i disagree, i found turbo subs to be frustrating. i bought it a while back - and finally picked it up again a few days ago, having previously gotten to the liberty site. i started from the beginning and finally finished it yesterday.
i love the game, but it was super hard for me. i'm one of the perfectionists who like to score expert on every level, and will replay a level until i reach said expert score. i had to toss that mentality to play beach party craze and stay sane, but that's another story.
i struggled with the sauces too, that messed me up. and often, i thought i'd lose a level, and instead scored expert somehow. other times i thought i'd be ok but didn't pass at all. the game just went so fast, i didn't have a chance to notice and distinguish the impatient customers from the patient ones, with a few exceptions.
i think i've played turbo pizza from start to finish 2 times now. i love it. will prob pick up turbo fiesta now. turbo subs frustrated me so much i didn't buy the fiesta one before.