It's been about 15 years since I have been there. We usually go to Lincoln city area. The Geology hasn't changed much but the people and human structures have. It has been really built up and is very crowded. I talked to a local in Seaside and they said the area has come to be an international hotspot rather than just a cool Pacific Northwesterner destination. Warrenton has become the suburb of Astoria. Astoria is a town I need to spend more time in. I have usually just skipped over it but there is a lot to see and do there.
If you haven't been there I highly recommend it - even in its now super crowded state.