This is a good bargain. Made for Sainsbury's by Codorniu, it is a deep pink colour with good red-fruit flavours and a noticeable richness about it. Interestingly the main grape varieties are the Champagne Pinot Noir and Chardonnay. Only these two are mentioned on the label but there's a good chance it also includes some Spanish varieties.
Considering Sainsbury's also sells Codorniu NV rosé Cava for £11.99, do you think it's any better than this? I seriously doubt it.