Originally Posted by F10GLA

Only you can decide that but for only £520 more I would jump at it especially for such a long flight! The shower will be nice and refreshing come the morning. It is unfortunate that you will miss out on the first class lounge dubai though. In-flight, you will have your own cabin and I assume the crew will be another step above the wonderful J staff.

The way I look at it is, if the extra £520 will have no material impact on your day to day life then go for it- you need enjoy these things which we are all fortunate enough to afford!