They are good for gaming and movies. Not too great to read text though. You can use them to work (read/write code), but it’s not a great experience imho. The resolution isn’t good enough to feel that I want to work with them.

Best steam deck experience I’ve ever had though. Sekiro and Elden Ring with a giant virtual display is fantastic

I find them awesome for reading text, but I generally plug them into my phone, It's usually displaying much larger fonts than you'd use on a computer.

As a rule of thumb, you probably want a font size similar to what you'd use on a 12 or 14 inch screen. People code quite well on 12 - 14 inch displays but it's not the advertised "57 inch screen equivalent" if you're displaying text.

I paid $600; it's a little steep but I use them plenty to justify it (probably wear them 3-4 hours a week on average).

Yes, there are prescription inserts that you get with the glasses.

I only use one setting, and it isn't ultra-wide screen or anything.

Visually the text is worse than looking at text on a laptop screen (or any other screen); the advantage is in the neck. It's so much better not having to look down.