Their last album The English Riviera is a modern classic in my opinion (2011 was an excellent year). It was a massive sleeper hit, sales and interest in the record have still been growing even recently, probably due to the Mercury nomination/ recent hype.
The follow up, Love Letters, has some of the best songs they've ever made in my opinion such as the title track, I'm Aquarius, Boy Racers and Monstrous. But I don't think it's a patch on their last.
I wrote a review which pretty much sums up my thoughts: http://iplugtoyou.blogspot.co.uk/2014/03/metronomy-love-letters-review.html
What do you think of the record?