Recently stayed for three nights with a family of four (6 and 8 yo), and wanted to share the perspective of a family that's not-so-ritzy. Our family had never been to LA, and wanted to see some beachy parts of it for a few days before a trip to Disneyland. We had never stayed at a Ritz property before, and so were a little concerned our budget would be blown by meals/incidentals in the hotel. We ended up with no incidentals and the whole family loved this hotel.
The hotel is centrally located beach-wise, and we ended up being gone for most of every day, enjoying the hotel property in the morning & evening. We went to Santa Monica one day (walked partway through Venice neighborhood and then hopped a bus), and then rented bikes and rode the bike trail to Dockweiler Beach on our second full day. We expected the kids to want to be at Mother's Beach more (and it's an excellent kid spot), but found it to be more suitable for 6 yo and younger (our kids were bored of it once they saw the ocean beaches). The playground built into the beach there is a nice asset, and there's a little cafe called the Mermaid Cafe right next to it that has a few tables.
We would typically swim at the hotel pool in the morning then explore for the day, and then sometimes return for a swim in the evening. The pool is larger than it looks, and was often empty or only had a few other guests in the morning hours. Our kids are well behaved, and could play comfortably- there was plenty of space to play without disrupting anybody else. The hot tub often had more people in it than the pool, but is also large and was never so much that we couldn't all get in when we wanted to.
We did a few quick meals in our room (we were on the first floor which has patio furniture so we could eat outside- the other floors' balconies are too small to accommodate patio furniture), and walked along the waterfront to the Killer Cafe for breakfast one morning. We did this whole leg of the trip without a car, and didn't miss it.
Hotel feel & staff are great like most others say. Room didn't seem super fancy, but was definitely nice, clean, & comfortable. Road outside hotel is very busy and can be loud depending on time of day.