The good:
A is a friendly host; kind, helpful, social and accommodative with flexible check-in and check-out times. Indeed, he even texts you every now and then to see if everything's ok. An all-round top Irish bloke. The location is great, serviced by good public transport. There's also a 7-Eleven around the corner.
The average:
Just be mindful as to what to expect. For instance, the Internet might or not might work; the kitchen is off-limits; you have to climb 5 floors; you will be sharing the apartment with the host, who lives in the lounge, so you will be walking past him everytime.