Avoid. Foolishly, I sent a photo at his request when he had a Rentmasseur profile. After providing my address information and confirming the appointment, he cancelled at the arrival time and then blocked me on RM.
If you care to know more, here are the details: His profile on RM was showing available and I sent an email and received a quick response. Based on the positive email exchange, I texted him to schedule a session. After providing address information, he asked for a face photo for his safety. I was hesitant, but the communication had been very positive so I sent a photo. He responded right away and confirmed the appointment time. Just before the scheduled time, he texted that there was an emergency with his son and he needed to cancel the appointment. I responded that I understood and wished him well. When I logged into Rentmasseur, he was showing available and had blocked me.
As far as the photos, the Masseurfinder photos are a much more enhanced version of his RM photos.