Hi Angeline and great work! love the use of wording in your qualitative question, "experiences with and preferences". I love that you have used an approach that includes observing and then interviewing - you will have very rich data. Re: access, getting someone who works at the site who you can partner with if it might help their program would really help - if you would feel comfortable sharing data with them (kind of community participatory research). I think working with someone at the IRB is a great approach, and just emphasize the lack of harm involved here =)