Like anything else which brand of coffee to drink is a personal taste. Probably the same as many people here I started out as a kid drinking whatever my parents had in the house which varied over time but it was always just a jar of instant, like most working class households. Anything from Nescafe to Mellow Birds ( Anybody remember that?) For some reason I never drank tea after about the age of seven. I've no idea why not as my parents and sister preferred that over coffee.
It wasn't until I went away to sea in 1974 I discovered percolated coffee. This was usually in the officers mess, as us ragarse crew still had the instant stuff in industrial sized tins in the mess room. I quite liked the percolated stuff and began to get a taste for it.
Over the years I've tried every brand going. By far the best I've found is Waitrose number 1 Kenyan AA. Of course this is one of the most expensive, now at £4 a 227g pack. Aldi do a French one, number 5 strength which is a great substitute at £2.20 a pack.
I only drink one or two.mugs a day but I really enjoy it. No sugar just some coffee mate or it's equivalent. I've found milk just kills the taste of the coffee. It's good reading what types others prefer. I also don't have a fancy machine just a cafeteria, add coffee and water, wait a few minutes and hit the plunger, job done!