The viewing I did was at their Stephen Street base. It was in private on a very old small TV with a video... no headphones. I paid around £15 for the 90 minute film; I think their charge in part relates to length. If you wanted to do *several* items that might start to become expensive and I vaguely recall there was a limit on time anyway. I was just doing it for private interest. I daresay if you do it through an academic institution the rules might be different.
Overall I found the experience perfectly enjoyable, but it was quite primitive. I was not asked any details about the equipment I had with me so I imagine a laptop would be fine, but you'd be well-advised to check first. I made notes on paper, but the environment was not like a 'library' at all. It was a bit like being in a stock-room in the cellar area.