It's going to go like hot cakes! Hard to find and great value 1-litre bottle for £23.
It effectively works out to be £5 more for approx 43% more rum compared to a 70cl bottle at the £18 offer price. The 70cl is £18-23 in supermarkets.
This price is the lowest I've seen it on Amazon (for regular price - Camel Camel Camel - and matches a previous Lightning deal a bit back). Amazon tends to have a good price on the 1L but it costs around £30 elsewhere for this size.
This is 1L bottle so works out to be a really decent deal compared to prices elsewhere (£2.30 per 100ml) vs the cheapest 70cl bottle (£18 at supermarkets = £2.57/100ml).
*EDIT:* The Lightning Deal has now ended.