The last time I stayed there was about 8 years ago, so none of the big changes had happened yet. I really enjoyed just knowing that you could hop on the monorail and be in Disneyland. I remember staying there as a kid trying to wait up to see Tinkerbell on the monorail. That was over 30 years ago.
Staying at the Disneyland Hotel just adds to the magic of the whole trip. We had the opportunity to stay there in a couple of weeks for a convention, but even at the "special" rates, it was hard to justify. I think everyone should do it at least once though. It is a treat.