Thoughts about long service intervals?

We bought a Skoda Octavia RS late last year and are very happy with this great car. My only concern so far is the long service intervals at 15,000km compared to our previous cars which were serviced at a much shorter intervals. So far we have run up about 7500km and it feels as if I should be getting the oil changed. What do you think of the "yearly" service? Are the oils and filters really good enough to go the longer distance?