What you're actually getting
Old Mout is a New Zealand cider brand that's been around UK shelves long enough to feel familiar without being boring. The Berries and Cherries variant sits at 4%, which is your classic sessionable level, not trying to floor you, just something cold and easy. Ten 330ml cans for under eight quid with the checkout voucher applied. That's decent by any measure.
Personally, I had a few of these at a mate's garden do last summer. They disappeared faster than anything else in the cool box, and his kids nicked a couple thinking they were Ribena. Not the most rigorous product test, but it tells you something about how approachable the flavour is. It's fruity without being aggressively sweet, with a bit of berry tartness that stops it feeling like a soft drink.
Who it's actually for
If you want something to bring to a BBQ, share with people who don't really drink beer, or just crack open on a Friday evening without thinking too hard, this is spot on. It's not for the craft cider crowd chasing tannins and complexity. There's no pretence here.
Honest reservation: the cans are 330ml, not 500ml, so if you're buying for a group it goes quicker than you'd expect. And the voucher has to be clipped at checkout, so don't forget that step or you'll pay more than you need to.
728 degrees of community heat on HotUKDeals suggests this has been noticed. Stock probably won't stick around long.