I've done three of the non-video shops. I found the report to be easy enough, although it helped that I used an audio recording app. I also spent around 10 minutes onsite and 30-45 minutes on the report. However, I would guess that this company probably does not incentivize their staff to sell memberships. The presentations I got were very basic and the tours consisted of standing at the front desk while the staff member pointed to different areas of the club. That made my narratives pretty short when they weren't just "N/A". You might get a club where the staff has received training or guidance on sales and presentations. Or maybe you get a manager who needs one more sign-up to qualify for a bonus. That could easily turn it into a 60+ minute onsite and a hefty report. The phone call should give you a decent idea. If they don't ask many questions and just read the membership levels and pricing off the website, your onsite will likely be quick.
I have not had any problems with Advanced Feedback, although those were the only shops I've done for them so far.