I fly everytime with KLM.It is abit longer not they have a stop over but thats because Philippine government upped the tax for europeanairlines and so now they stop and change staff so on paper the flight is now originating from and asian country andso therefore paying less tax.
Anyways if you have a chanceand have the funds try checking in as soon as possible on the 30 hour mark on KLM website and you could be able to upgrade to business class for and extra 200 odd pounds.
If not at least get the economy comfort seats from row 9 and you might fair a bit better.They uses the 777/200 and 777/300 on that route and the 300 being a much bigger and better plane