> If you’re thinking of working remote, then think about what kind of working environment you’re happiest with before you take the job, and make sure you’ll have that environment available to you.

Seems to me that the best part of remote working is the ability to figure out what the best environment is for you. Don't be a theorist, be an experimentalist: try a bunch of different situations and see what you like best. It sounds like the author started down this path, but stopped too soon (at first).

> Are you sad when a lot of your office is out sick, or are you relieved?

Usually relieved, then I wonder why I bothered with an hour of driving to sit in the office by myself, when I could have done that from home.

> Do you get uncomfortable when you’re in quiet environments for too long, or do you revel in them?

Love quiet! My office at work has no windows (not even internal ones); being able to close the door and cut off the outside world is the best!

> Do you feel weirdly lonely when you’re in a noisy coffee shop, or do you feel energized?

Annoyed by the noise mostly. Coffee shops are for getting coffee and getting out. Libraries are way better for actual work, IMO.