Has anyone ever written a letter of recommendation for someone they know? DS's daycare teacher is leaving (long story) and asked me to write her a referral while she's looking for a new job.

I really love her and think she's great. She's even become my new babysitter. I just don't know what to say! Any ideas for some good key phrases?

I've thought of stuff like "she's compassionate," "provides a consistently high level of care," etc. But I'm looking for some other ideas. Thanks!