I stayed 3 weeks in Miras and Ryans Garden room, and it was perfect!
If you are staying for a longer periode, you like your privacy, or you need to work this is the perfect place to stay.
You have everything to you self, kitchen and bathroom.
Of cause the area is really nice, close to the beach, to the shopping area, and cafes. If you need to do your laundry there is a laundery close by.
I first booked for 10 days but expanded and stayed for 3 weeks, and was very happy about everything.
When I return to Santa Monica, I would certainly stay there again, and will certainly recommend it to everyone else who are going.