We had a whirlwind of a trip, so we didn't spend that much time at Sabhdh's. That being said she was very flexible in terms of check in/check out. We had a jam packed schedule and no cell service, so the extra "wiggle room" was very much appreciated.
The room itself was very comfortable and pleasant. We appreciated the attention to detail in terms of comfort. (Sabhdh even had emergency exit information posted on the wall!)
Because we had a rental car and were essentially just sleeping here, I can't really comment on convenience to Limerick.
In terms of safety, this is a residential area. We felt extremely safe and welcome.