Sounds like HA battery drain will be an issue of some unknown amount, no matter what, if I go to a restaurant, spend a couple of hours there, and hope for my HA batteries to last the rest of the day. I can deal with this if the device allows me to hear better while I’m in restaurant.
In looking at the various Roger threads, I see that you have a lot of actual, hands-on experience with the various Roger devices. My choices in iN devices are the Select and the Pen. The Pen is less money by a bit, but this is secondary to getting what will work best for me in my environment. When we are in a restaurant it’s almost with never more than six people at the table, in opposing rows or in a circle. Often it is with four people and sometimes just myself and one other. Almost never a large group. I see that you are in England, so you have a lot of pub-type environments that I can recall as being pretty raucous (and fun!!). This is what we have here in the States - not pubs, per se, rather intentional noisiness due to hard, reverberating floors/ceiings/walls. I hate it, but it’s getting to be impossible to find quiet restaurants that are amenable to conversation. Do you have a preference for the Pen versus the Select in these sorts of situations, with the number of people I spend time with? I also want to use the device that I get as a TV streamer, so any differences factor-in, but this is secondary to the basic problem.