My wife and I stayed here for our 5 year anniversary and were not disappointed. An activity/experience coordinator contacted us within a couple days of booking our rooms. I let her know that we were staying there for our 5 year anniversary and she helped arrange appointments for the spa. In addition, she can coordinate other activities for you such as horse back riding, bike rides, hiking, etc...
The town of Ojai is small and very nice. Plenty little artsy shops to peruse. We spent a little bit of time in the town of Ojai and spent the rest of it at the resort.
The resort grounds are very beautiful and all framed with a backdrop of southern california mountains. From the moment we arrived, the resort staff were all very attentive and friendly which made it feel all the more special. Just about everything about the resort and spa are incredible. My wife and I had spa treatments and were very impressed with the quality of the professional staff and the treatments themselves (I would recommend making appointments well ahead of your stay).
There are several restaurants onsite (Maravilla, Oak Grill, Jimmy's Pub and small cafes). All are excellent should you decide to stay onsite for dinner. We had our anniversary dinner at the Maravilla and sat outside on the balcony. I would highly recommend and request ahead of time as there are only a handful of tables available on the balcony.
There are numerous pools that you can lounge at. We spent an afternoon relaxing at the outdoor spa pool. Again the poolstaff were excellent and were always available to bring us water and take orders for cocktails or food.
In conclusion, I'd highly recommend the Ojai Valley Resort and Spa for any special occasion. We were there for an anniversary but there are activities available for those with children as well that would be give you time to relax on your own. As with just about any resort I've stayed at (in the U.S.), it's not cheap and there are the usual markups you'd expect such as daily resort fees, pricey drinks/meals, etc... but they treat you very well here and it's a wonderful getaway.