Late to the party but I'll chime in:
Coffee fanatic here. After quitting soda pretty much it's my go-to caffeine source.
Did drip coffee for years and hated having to buy a new one every 2 years, or when something got fucked up like having two grounds in the drip exit blocking the whole thing and causing it to overflow while you're in the bathroom getting ready for work.
After I started doing coffee shops more regularly and realizing just how fucking bad domestic big brand American coffee is, I started buying bean and knew I shouldn't waste the money putting it through a drip machine. (Forgive me pour-over fans, but I just can't. I don't know if it makes a superior tasting cup of coffee or not, it just looks kinda absurd to me to have to stand over it and babysit it.)
I tried an AeroPress first because it was compact, easy to clean, durable, etc....but after 6 months I realized that a) it's particular about how many grounds you put in and b) is pressure sensitive. When you've spent the last 3 minutes steeping it and go to plunge and the paper filter moves or tears......frustrating. (And it's plastic so even if it works properly it tastes like shit.) You also need the right shape of cup; if you've got a big, wide mouthed cup the AeroPress may not be able to sit firmly over it, which means you have to transfer the coffee from another receptacle. Not ideal.
So yeah, went to a French Press and never looked back.
I've broken two? so far in about 6 years. Knocking it out in the trash, it connected with a glass bottle and broke. I think the other one I was moving it in the vicinity of the sink and it caught the edge of a plate or glass or something.
Other than that, I think it doesn't really matter. (I'm not at Jimmy's level of sagacity when it comes to French Presses.) I've bought three? of the generic Badum Chambord:
https://www.bodum.com/us/en/1928-57-chambord?gclid=EAIaIQobChMIz-GF6Lf87wIV4oFbCh3o3w7yEAQYASABEgLDuvD_BwE You can find them pretty much everywhere that has a household goods section.
It's a run of the mill French Press but it gets the job done. Make sure to get the one that has little metal legs raising the beaker off the surface. I've bought one before where the base is encased in rubber. Seems better right? More stable? Protected from hits by the rubber? Well, the beaker is in direct contact with the rubber base and I think the glass got cracked at some point when plunging too aggressively.
As for a grinder, meh. I've been using the same coffee grinder my mom had back in the 80s that she gave to me. I think it's this model:
https://cdn.cutleryandmore.com/products/large/27678.jpgThe blades are probably dull as shit by now but it's always done the job none the less.
Coarse or fine ground, I don't think it honestly matters. Coarse ground can be plunged sooner than fine ground, what really matters for fine grounds is how long you let it steep. The longer it steeps, the more stuff that floats to the bottom and makes it easier to plunge. I like my coffee strong AF so I'll let it steep for 5+ minutes. Less than 3 and you can definitely feel resistance on the plunger which you don't really want. More than 5+ and you likely won't notice a difference between coarse or fine ground (on plungability anyways.)
I'm also a firm believer in grinding coffee beans to order. If you have it pre-ground by a coffee shop or something, keep it air tight, drink it within a week I don't know if there's much of a difference. I typically go through a pound of coffee beans a week but even then I still prefer it have it freshly ground. You can just tell by the froth that gets generated by pouring water into freshly ground beans that you're getting maximum goodness out of it. When it's ground the oils in the beans are exposed and start to dry out. Again, within a week? Probably not a noticeable difference. Longer than that though and you will notice that ground coffee, even airtight coffee, just doesn't have the same body and freshness and richness because those oils have started to breakdown. Still good if you bought good bean, but if you're going to be buying good bean....make every cup worth it.
Only other things I'd advise you to watch out for with a French Press: stirring it. After you pour water in you'll want to stir it pretty well so it mixes evenly. But if you're using a metal spoon, do NOT let that thing clack and hit the side of the press, or it will eventually crack and break it.
Last thing: after you've poured your cup I'd recommend emptying and cleaning the press immediately. It's much easier when the grounds are still hot/warm and the fact the beaker is still warm or hot too causes you to treat it with more care. When those grounds get cold they're harder to get out because they're compressed, which means you may have to clean more aggressively, which means you increase your chances of breaking it. If you're like me and you use a kettle to bring water up to boiling, be aware that the glass of the press after the water has been added is also at boiling temp. Never put actual boiling water in your glass press. Wait for it to stop boiling and bubbling before you put it in or you risk the glass shattering. Along with that, when you go to rinse out your press that you just freshly poured coffee from, use HOT water. If you put cold water in the press after you've freshly poured coffee, that thing WILL shatter because of thermal contraction. I dunno what it is about the glass in French Presses. It's not thin but it seems rather fragile.
And for the record...my bean of choice is Columbian Supremo. I used to drink a lot of African coffees but CS is just so full bodied, smooth, vaguely chocolately. And it's common enough I don't have a problem finding it.