Quick summary: if you have the cash to spare then look somewhere else. While it's really convenient to get to anywhere you want to get to, the area is also unsafe. The hostel is mostly geared for foreigners trying to eke out a living in Ireland (I think I was the only individual in my shared space that was there on vacation).
Detailed: I really, really wish there was a picture or a note of what the dimensions of the locker were. I don't think I would have gone if I had known in advance how small they were. I also wish I knew how close the beds were. Someone next to me was sick which got me sick. Before I left there were a few other people who also started coughing. I'm here in Ireland as a vacation so it's frustrating I have to limit to what I can do because of the (hopefully not COVID) fever I currently have. This was out of their control but I'm pretty sure someone was stabbed, murdered, or puked their guts out since after the first night there was an area cordoned off with police tape right outside the hostel, within which had puddles of dried vomit and pools of blood (in front of the church even). That definitely spooked me and encouraged me to find another place asap. One of my things was also stolen the first night; once again out of their control but it definitely soured my opinion of the place.
As for the good, the young folks working reception were all nice people. It was a bit difficult at times to understand what they were saying but it seems the hostel is a popular spot for foreigners attempting to settle in Ireland which makes sense. It's really not a bad place if you're strapped on cash, have experience living in sketchy areas, don't own a lot of things, and don't mind cramped living quarters. I'm here on vacation with some cash to burn though so this wasn't the right place for me. Kind of bummed out too since most people seemed decent, knowing foreigners' background is also always a nice experience imo, I just don't want to worry about stuff while touring Ireland.