I've been through a number of English wine phases - I have always (mostly) enjoyed them, but it has never resulted in an unqualified devotion to patriotic oenology.
English wines' main challenges are climate, price and range; and that's before you factor in awareness and branding issues.
My advice to people wanting to try English wines is generally to go for the fizz - at the top end it can be much better than equivalent-priced Champagne.
Waitrose stock a total of 110 wines from England and Wales, many of them available only locally (within 10 miles of the vineyard).
At this Christmas tasting, there were English Wines of all styles and all were thoroughly enjoyable. A couple were even rather Good.
Here are the ones I enjoyed most.
Leckford Estate Brut, 2013 finer and more elegant, still youthful; will gain complexity with age. Good.
Winbirri Bacchus Reserve, 2015 typical aromatic Bacchus hedgerow aromas and freshness; atypically substantial.
Stopham Estate Pinot Gris, 2015 floral and fresh with gooseberry and ripe pear fruit. Think restrained Sauvignon.
Litmus Element 20, 2012 deft and mineral with an intriguing cidery tang.
Bolney Estate Pinot Noir, 2015 very light, fresh Pinot with gentle cherry fruit; think Alsace rather than Burgundy. Deftly made with an appropriately gentle hand.
Denbies Noble Harvest Ortega 2014/15 sweet, botrytised English sticky with beeswax and honeycomb. Fades quickly, though.