Experience w/ Grand Lake Montessori, TRIS, Rockridge Montessori?

Hello,

We're considering putting our 3.5 year old and maybe also 1.5 year old in Grand Lake Montessori, TRIS, or Rockridge Montessori, and are wondering if anyone has recent experience. Our older daughter is in a Montessori in SF now and loves it so we'd like to find something similar. We toured and they seem lovely but would love any personal experience/thoughts.

Thank you!