I would never use long life service intervals. I dont care what manufacturers say, why risk your engine over an oil change and filter?
At the very least, you could do an oil and filter change in between the long life services.
People get too caught up by manufacturers specs with regards to oil too. Most decent oils are fine.
As an example, i work for Toyota. For years they only used Mobil 1 Fully Syn 0 40. That was what Toyota GB specced. In everything, even 20 year old starlets would get it!
Then they swapped to 10 40, then 5 30, then Esso oil, now were changing to Shell. Then Prius must have 0 20. This is all from Toyota GB, not my dealer.
So the same engines they said must use a certain oil x years ago, now they say must use another.
I run whatever i have access to. In my CRX and 205 i ran 0 40, E46 was 5 30, and A3 will be 5 30 most likely.