I use the Wilfa Uniform with V60 and April Brewer. My sweet spot is a 22 for a 1:15 ratio. If I'm doing a dense Ethiopian or something I'll usually bump to a 24 or 25.
With regards to tasting like the coffee shop what kind of water are you using? Good coffee shops usually use perfectly tuned water vs what many people use at home. I've found that to be the biggest difference. I use GC water mixed into distilled water and it gets me much closer to what I've had at a coffee shop.