Certainly don't take what they call an 'apprenticeship' you'll end up on the customer service side all the damn time, you may get one day a month on the tools.
Have only scanned what has been said so far, but as others have said be very wary about their methods, put me under a feckload of stress. yea, ME! TBH the job is a piece of wedding cake now, in fact even if you work out ways things will actually work/ spot things which will definitely not work and tell your superiours about it, they don't give a ---- and tell you to do it their way anyway. Then when you demand they sign a bit of paper saying they are telling you to do it their way, they wont. Then when it all goes tats up, guess who's to blame?
If you can keep your head down, take the job and do just that. If you're the sort of person who can't keep their mouth shut (like me), don't touch it with a bargepole. Either way, don't expect to make a long term career oout of it, not now. Wouldn't be suprised if I'm on a blacklist somewhere, just for calling a few people the c word.