[Samsung Galaxy Note 8 Accessories] English_Gentleman:
First of all, I’d like to put out there that this is a review for the item I purchased and might not be the same brand as the one you might end up with. I’m aware that there are several different brands, but I just got this one as it seemed like a good price, but more on that later.

What exactly is it?

It’s a charge/data cable with a female USB at one end and at the other a magnetic Type-C at the other (other adapters are available).

Who is it for?

Anyone but more importantly it’s for someone that charges their phone quite often. All you do is offer the cable end to the adapter and it magnetically clicks into place.

Why did I buy this?

I was, first of all, looking for more Type-C USB charging cables to put around the house so I can just stick my phone on charge as and when needed. I thought about buying a pack of standard USB cables however I remembered that a while ago I purchased something similar for another Mini-USB device I had and looked about for one that would work with my Note 8. I found one and ordered it off eBay.

Advantages

Wear and tear on the charger port. This is the bit of the phone that is more likely to fail (unless you count the screen being smashed) as you’re constantly plugging and unplugging the charger. If you charge your phone twice a day that’s 730 times a year you're pushing and pulling that plug into the port. With this adapter, you put that little bit in the charger port once and that’s it. Just offer up the cable and it magnetically clicks onto the adapter. Also if you were to accidentally catch the cable and wrench it then the cable will come away from the adapter and your expensive phone won’t get dragged onto the floor. Furthermore, the charging port will not get damaged, because if it does, it’s not just a matter of unscrewing a few screws and replacing the charging module.

Disadvantages

First main one is that you either need to carry the adapter cable around with you or you will need to purchase extras. This was my issue. I need one cable at home, one in my car and one in my truck. Plus another one to keep on you should you visit a friends house. The cables aren’t cheap either if you wanted to buy them separately. And there lies another issue. A lot of sellers have run out of stock of cables on their own, so you need to buy the whole thing, and at about £5 or so a pop for a cheap-ish one, then you’re looking at about £20 for a set. I’d suggest you purchase all the cables with a variety of adapters from the same seller that way you know they’re all going to fit.

Speaking of the tiny little adapters, they are really small, and if you drop one you’ll have a hard time finding it, and like the cables, they're sold separately but are sometimes out of stock. I dropped one in the kitchen and found it stuck to the bottom of the washing machine due to the magnet attracted to the metal.

Should I buy one?

Yes, in fact, I think you should just go and buy a few. Reason being, a set of these will be cheaper to buy than replacing the charging module on the Note 8, especially since you need to separate the screen from the body.

Any brands you’d recommend?

There’s a brand called Wsken that makes a variety of the cable and has been reviewed by a chap on YouTube called Techmoan. However several sellers sell their own variety at a lesser price, so it’s up to you.

Link to UK eBay listing I used: http://r.ebay.com/LJ6uBF