In this particular piece, Britten chooses some rather cumbersome texts to set and sets them in a way that make the delivery odd enough to both work and be memorable. However, the unusual texts can also be a bit distracting. Actually being able to identify texts as they are sung is an inherent problem in music. Often times the texts will just pass and the listener will just ignore the fact that they can't understand the words because the music is moving enough. However, when Britten uses fast sixteenth note passages and gives one syllable to each note, the listener is so intrigued by the driving rhythm that the lack of understanding of text can be frustrating. "What did they just say!" anxieties can be passed present and thus detracting from the piece.
The piece, a cantata of sorts, broken into 8 short movements, has no real sense of progression. No big start, and then just staying in a comfortable middle feel until the end. The movements lack variety in mood and tempo.
Most enjoyable are great discrepancies between what the choir/soloist is doing and what is happening in the organ. Often they each seem to be doing their own thing and they are coincidentally happening at the same time. Neither particularly support one another but at the same time work great together.
I do, however, strongly recommend this piece simply because most people are not familiar with Benjamin Britten, and he truly was a unique composer with a totally original voice--none like him before, and none since.