Me and my husband stayed at Daniel s apartment for 2 nights. The view is great as promised and the room was clean with most required amenities. Place is well connected by metro and there is a super market near by. If view is your primary objective and you don't mind a bit of hard work reaching the room, then this place is perfect.
On flip side, there is a bit of a climb from the nearest metro station. There are public elevators in Lisbon (they work till 9 pm) which we didn't realize the first time we came though even if you take them there is a climb up the stairs and with luggage it is a bit hard to manage. I would think normally this would be the only thing to consider before choosing Daniel's place. Though in our case, Daniel couldn't meet us at check in though he sent someone else who didn't know about the house much (e.g.: how did some of the appliances worked in the kitchen) and there was some repair work pending in the house which Daniel wanted to get done during our stay which was a little inconvenient. We wouldn't have minded if he got it done while we were out sightseeing but after a long tiring day outside, you don't want to come to house with sawdust and hammering. Though once we asked Daniel, he immediately got the workers to stop and cleaned up the place nicely. Overall, I would recommend the place for people who travel light and want a nice view over everything else.