Yes, but I would hold off on buying any rulebooks until the remaster comes out. All of the rules are free online, and the Pathbuilder app/website is very helpful in seeing which options are available for you. If you want a good starting point, I recommend an adventure path, which is a 3 or 6 book campaign that takes you from levels 1-20 (six book) or levels 1-10 or 10-20 (three books). They're much better than the published adventures for some other games, since Paizo's history is in writing adventures, and they don't require much work beyond what is in the book for a satisfying story and adventure. Those are fine to buy, since they are compatible with the new version and they will not be reissued later. Same with setting materials, which are extensive and have a good amount of detail on various places in the world. I'd try things out in roll20 or foundry, which have the base rules integrated for free, and see if you like it.

IMO, yes. When I want a modern D&D-type game (i.e., heroic high fantasy, somewhat crunchy, focused on set piece encounters) I'd reach for PF2e over D&D5e any day. It works as intended, give players more interesting choices, it's way easier to GM, and despite seeming way crunchier at first blush, the rules are much smoother in play. Plus, all the rules are available for free online, with the express permission of Paizo. It's ultimately a matter of personal preference, so you may or may not like it, but I'm at least confident saying it's a well-made system that's worth checking out.

Like StarPupil said, there's a new revision coming out soon, so I'd wait until then. It's still 2e, and will still be compatible with everything, but they're making some minor tweaks, including some errata, and scrubbing any little bits that might still depend on the OGL. If you like PDFs (which Paizo actually makes and sells, unlike 5e!), you can also keep an eye out for Humble Bundles. There are occasionally some great Pathfinder 2e bundles, which tend to include the core rulebooks and a ton of other stuff, including full adventure paths.

If you want deeper rules for things, PF2e is good. If you want simpler and more story-focused rules, picking up Index Card RPG or Knave might be good.

I like it as a direct replacement and if you're interested in giving it a peek you can check out the entire ruleset with no Pathfinder Beyond subscription needed. now excuse me as i vanish back into the pathfinder free marketing dimension, eheheheh

I personally think so. It is in many ways similar to 5e but a bit denser on rules. It feels like the designers really wanted to make sure that there were no weird corner cases. And while there is a lot of them, the rules all seem very logical and consistent. So when playing it feels a bit more "mechanical" or "game-y" but also less wonky than 5e can be. It is a somwhat different experience than 5e and the rules are available for free at Archive of Nethys. But if you should pick it up really depends on whether your group is unsatisfied with DnD or itching for something new. Our group changed over after trying a one shot and because our DM was getting a bit bored with 5e.

Dare to explore the world of classless role-playing. Fate, Savage Worlds, Cortex. Take a walk on the wild side.