North Star are pretty amazing to be fair, as a Leeds lad myself. In Leeds we have a lesser known coffee shop called Kapow, they have some great blends (the Etheopian blend is intense).
I'm using coffee link at the moment, it's really good for the price nothing to special in terms of quality though. I usually order two 500g bags for around 22 quid which lasts a good month
I ordered an anaerobic coffee there the other day though and it was not great, not a fan of that type of coffee. Don't know if it was just that particular bag but the smell of the anaerobic coffee is not the one (the taste was actually fine)
I used to use Redber, but Rave made way more sense financially and their roast consistency had less dud beans than Redber. That said, some of Redber's offerings were really nice. The Rave packaging is a great bonus.
Like any taste, it is hard to put into words but it has the right amount of bitterness & smells great.
I make a lot of latte & this one is good for that IMO.
As I said, hard to put into words.