How old are the floors? Is this the first time they've been sanded and refinished? Did the sand and and refinish without removing the old shoe molding?

I'm guessing that these were a lighter natural oak color and after sanding they were stained?

In my opinion, they didn't do a good job. The shoe moulding should definitely have been removed and replaced once the floors were prepared and stained properly. I hope you dealt with a reputable company that stands behind their work. I would not be happy so I can't wait to see what the pros say.

No, not acceptable. The baseboards should have been removed, stain applied, baseboards put back.

Color changes on hardwood floors are difficult. They definitely could have and should have a done better.

It's notoriously difficult to sand in the corners and along the edges. It's done with a hand held electric sander. Paying close attention to the edges is especially important when staining a darker color - all of the previous finish must be sanded off in order for the new stain to penetrate. That's why things like shoe molding or vent covers should have been removed to allow them to get as close as possible. Any old finish left on the floor will prevent the new stain from penetrating.

I would expect to see a stray sanding mark here and there, but they should be rare and could have been caught and corrected before the floors were resealed. You should have no gritty or rough patches. Everything should be smooth.

Based on how high the shoe appears to be above the floor, it looks like those floors were sanded at least once before.

I'm sorry you've run into these problems.

Painting looks unfinished. The hardwood corners look undone.

The flooring contractor should have paid closer attention to details. Inspection and detailing requires more time as mentioned.

A realistic timeframe should have been discussed at the beginning between the flooring contractor and GC to ensure scheduling and homeowner's expectation is met. It's either that or the flooring contractor does not know the required timeframe required to do a quality job to meet GC's and homeowner's expectations.

1200 square feet takes up to 6 days to complete properly for a three man crew. Expectations are unlikely, when the timeframe is reduced to two days. The discrepencies are all scattered throughout the project. For the best end result, a full rework is required.

With new products and social media. Client's expectation for a quality job is higher these days. Client's can reduce the stress by hiring the right flooring contractor from the beginning.

Before you hire a flooring contractor. Make sure you research the requirements and timeframe of a project. You are investing in the flooring contractor's knowledge, service and time. There should be a red flag, if, they lack in one of these categories. If, they do not provide enough knowledge, service or time for your project. Reviews and testimonies should be backed with other credentials like certifications and quality images of work. From there you should be able to make a quality hire and investment. Starting your flooring project off correctly.

My guess here is that the GC made the hire. It is an insurance job, hire cheap and pocket the remainder.

Not the best; not the worst. Reality--80YO floors. How much of the floor has been sanded away in previous refinishes? Is there enough wood depth left to resand/ refinish. Because the floors have now been stained, I'm guessing that a significant amount of the refinish-able depth will get cut away. So either there isn't enough wood left to do another sanding or you'll be shortening the life of the floor so far as future possible refinishes are concerned.

Perhaps the finish can be lightly sanded/ scuffed to remove some of the grit and another coat of finish applied? Not with these guys, though. Most likely out of your pocket because the insurance company won't cover it. (If you opt for this route, know what finish --brand/ type--was used for this refinish.)

A scuff and recoat won't fix the places where the stain didn't take. Brown Sharpie or some other cosmetic fix?

Since they need a do over, guess, that is on the contractor, if there isnt enough to redo. Then, since he did the hiring and didnt hire proper people, he should have to replace the floor. Have you talked to your insuance agent about the not so good work? If not, you should. If you ever have another claim, hire the people yourself and make sure they are reputable. Never use anyone that the insurance company hires.

Other than the "shoemold" not being removed/not getting finished under, the edger scratches and the minor waves, most of the issues could be fixed with a Mohawk marker and another poly coat. I've seen better and I've seen a lot worse.

I understand my comment perfectly, but of course I know what I intended to convey. I think my sentence is properly constructed. Perhaps I was too brief so I'll simplify it for you.

Most of the issues could be fixed with a Mohawk marker and another poly coat.

The other issues could not.

I stand by my statement. Do you understand it now?

If my guys did a job like that, I'd offer to do it over.