Specific recommendations for private clinics

Does anyone have any specific recommendations for private clinics providing adult autism assessments? I'm feeling very overwhelmed by the number of clinics I'm finding on Google, and finding it difficult to evaluate which clinics would be a good option.

My specific concerns are that they actually specialise in adult diagnosis, and that they take time to talk to their patients beyond simply giving them a questionnaire. I worry that certain aspects of myself (anxiety, depression, having lived with my difficulties long enough that I have strategies to mitigate them) may frustrate diagnosis.

So far the Effra Clinic (https://effraclinic.co.uk/) looks promising. Does anyone here have any experience with them?