Was this drywall job done correctly?

If the board is secure and basically in-plane, the only real consequence of sloppy hanging is more work for the finisher. So, unless you believe he's going to do a subpar job at finishing, then there is no problem yet. What level of finish did you agree on?

If you don't believe he will do a quality finish, then about your only recourse is to negotiate a break in the contract and wish him good luck and hire someone else to finish.
I would advise that you have a polite conversation with whoever shows up to do the finish work as to your expectations for the finished product as agreed to in the contract.
Ask the guy how he is going to fill the gaps, and any other concerns you have and listen to his answers.
You always have the right to end a working relationship with a contractor, but you don't have the right to get your money back or "win" financially. AKA: You can "fire" him, but you still owe him money. Ending a job midstream always includes some grey areas for a financial split: scheduling, materials, what percentage complete etc.
Right now, I don't see anything in the photos that precludes them from delivering a quality finished product, or give you grounds for breach of contract.

That said: if you are convinced that they aren't going to finish the job properly, you should absolutely cut ties and negotiate an end to the contract.

FYI: Here is a possible explanation from his end. (aside from being rude to you, which is just dumb) It's a big company as you say. they make their money at scale, doing whole houses/tracts of houses. This job is not really profitable for them and doesn't really fit in their business model. But takes the job anyway. Sends out the expendable apprentice to hang the job. Apprentice does a predictable job, but that doesn't concern him because he knows the experienced guy he sends out to finish it can fix anything the kid screwed up. Completely fails to consider the effect on morale on the customer from the shitty hanging job because he doesn't normally deal with customers in this situation.

Regardless of code. Horizontal is a far better way to hang in a wood framed structure. There is nothing visible in the pictures you showed that precludes a good finisher from easily producing the finish you've agreed on. Taped seams don't just "show through" They were either there from the start and you didn't notice perhaps it was repainted to a higher sheen that revealed what was already there.
As for extra steps needed to do the job right due to the sloppy hanging job. No. As long as the drywall is well secured and in plane, none of the extreme closeups you showed are really all that important. Especially in a tiny room like a bathroom we are not talking about a huge difference to a finisher... minutes.
Things that would be trouble would be boards that are not well secured, cornerbeads that have the wrong geometry or boards that are hung out of plane with each other. None of that was visible in the pictures.

The real problem here is that you've lost trust in your contractor. (justified or not) Unfortunately you need to either trust him to finish the job or choose to go a different direction.

Mjaw said:

Did you see the bead? And with how they hung it im not so sure it glued or secured properly.

Click to expand...

Yes, I looked at the photos closely. Look at those photos again, they are all extreme closeups of minor stuff. MAYBE the beads are out of whack, but there is nothing in those photos that show they are. Those shims, hackish as they may appear, show that the guy hanging it was at least working to get the geometry right. I've seen metal bead put on beautifully that couldn't be finished. You may not like staples but USG says crimp, nail, or staple: not drywall screws. None of the photos are pulled back far enough to see the screw pattern. So, maybe it wasn't secured properly, but there is no evidence.

I assumed the guy hanging was the apprentice, but the OP states he's a 30 year vet. I can see that as well. Look at those pictures again and picture a crusty 30 year vet getting the important stuff right and not caring at all about some dents in the drywall in between corner beads that will get filled with a 1/4" of mud. Or a 3/16" gap between boards that will get pre-filled. But spent time to get the bead in line. "Know the rules so you can break them" We don't know, He could also be an alcoholic on a hangover. But there is NOTHING in those photos that can't be dealt with in minutes by a quality guy. That doesn't mean there aren't flaws that we can't see, but all we have are those photos.

To the OP: In my experience either that mesh tape was always there, it was sanded down, the lighting or paint changed to reveal it or there is some magic in your house that i don't understand. I've seen mesh tape fail a bunch but i don't know how it could migrate through mud without cracking. If I'm wrong I'd love to learn something new.
In regards to this job, you've done what you can, you either need to fire them or trust them at this point. Like others have said, your best bet is to be nice to the guy who shows up to finish.

Merry Christmas to all and I hope it works out in the end.