I personally prefer a small shul. But. If I were to give advice I’d say that a women’s program from 9-3, Monday-Wednesday would increase attendance. The flavor of it would be in between an Ohr Naava and Drisha. There would have to be a RH dovening that had the tunes that BT’s have been introduced to (NCSY style). Maybe there should be a longer and a shorter service for Friday Night and Shabbos Morning. Both would be high quality but one would be shorter. There’s a lot of pressure to not carry into the shul. In other words it’s a little too strict for a MO BT. I would also add a Melava Malka program.
I guess one of my favorite shuls was Ramat Oorah on the UWS. Women felt very comfortable there. I was able to attend prayer services every morning and then get a piece of halacha. It was really great. On Friday night there would be an announcement asking if people had a place to eat. The shul gave off a very friendly atmosphere.
Meanwhile I appreciate the shul and everyone there. The Rabbi is a super great teacher and I would recommend any man above Bar Mitzvah to attend his Daf Yomi shiur.
Dwindling attendance at the older shuls in Boro Park is a common problem. Most of the young YI style people have moved out. And who knows? Maybe like me they want a small shul.