We used to order from Laithwaites and the Sancerre and Viognier wines were very good. Expensive in supermarkets though. Like white Chilean Sauvignon or red Merlot. Some nice wines at M&S.
Like champagne very much, Lanson black label or GH Mumm but only at Christmas or special occasions.
Laithwaites margins on their top line price are eye wateringly large, at their discounted prices they are reasonable, but don't fall for the marketing ploy of "price it high to knock it down". - the real value price is the discounted price. Nothing wrong with the wines, but the ploy is clear.
I have tried but can never find the wines Laithwaite sell (the are btw behind most of the newspaper wine clubs etc) elsewhere to compare prices - the wines ARE available but Laithwaites have the buying power to get them produced under their own specific labels, hence preventing any price comparison