We spent 4 nights in apartment 1 of Mark and Sean. The apartment is well located in Phibsborough, 15 min by bus from trinity college with various stores close. It's on the first floor and is very new, clean and well equiped. On the other hand, the windows are not isolated enough from the street and there are some machine noise during the night. Also, the sofa is not so comfortable for an adult. However, I want to thank Mark who has always been very helpful and available.