With more aeration, it develops into something more yeasty with biscuity brioche, becoming more mouthfilling, savoury and rich with good, balanced fruit acidity.
If it perhaps lacks quite the finesse and fine bubbles of top-notch Champagnes, it does not command quite the same price either; you pays your money and you takes your choice.
This wine is exclusive to Sainsbury's and has apparently become the largest-selling Champagne brand in the UK off-trade (sales by volume).
£29.99 (but frequently reduced); exclusive to Sainsbury's.
Check out these other widely-available Champagnes
Les Pionniers 2004 Champagne (Co-op)
Veuve Monnier NV, Champagne - The Co-op
Eugenie Bezard Cuvée Tradition Brut - Cambridge Wine Merchants
Piper-Heidsieck Brut NV, The Co-op
More on Champagne and Food Matching
Champagne Tasting at Alimentum
Gosset Champagne Dinner at Hotel du Vin
Sainsbury's - website, twitter