We've used twilight check-in a few times, our luggage has always arrived at our destination and it's lovely having that extra bit of time in the morning for an excellent full English

Edited to add, when we used it last September, there was an upgrade offer to F for either £399 or £499 (think it was £399) which we took as the holiday was for our 25th wedding anniversary. We had overnight to enjoy thinking about how good our flight would be and in fact, we were the only 2 pax in F