Do not under any circumstances book to stay at this hotel unless you want to be ripped off.
I have just returned from Lisbon, we booked this hotel last November via the internet. There were 6 of us (3 married couples) and so we decided to upgrade and booked 3 Queensize rooms. We didn't pay upfront but our confirmation had Queensize Rooms printed on it.
When we arrived the man on the desk (I think the Manager) booked us in & when we asked if we had Queensize rooms said 'no', we had a double and 2 twin. We said we hadn't booked that and so he said then we'd have to be on seperate floors which we said was ok. When we saw our rooms the beds were barely double size and the rooms were the most pokey and dingy rooms I have ever seen. In hindsight we should have rejected them there and then but we didn't as we were tired.
When we booked out three nights later I mentioned to the same man that because we didn't get what we asked for we should really only pay for double rooms and not queensize he didn't even acknowledge me, ignored me completely and still took the amount for the queensize rooms from our credit cards.
I know this hotel was quite cheap (it would have been even cheaper if we had been charged correctly for what we were given) but I would advise pay a little extra and stay in a nicer hotel.

I would like to start by saying that it seems that offering a twin room instead of a double one seems to be a common practice across the globe; i.e. it happened to me to, and I definitely refused to take a twin room instead of a double one, as I was staying with my SO. And to answer to the traveler from Athens, it has happened to me BEFORE this hotel... in Athens, Greece :) and I had to argue hard with the receptionist in order to get the double room I had reserved.

Here at Comfort Inn Embaixador the front desk clerk was nice and helpful, and when we came back immediatly from the 1st floor twin room, he inquired if a double room was ready, and it was, so we got a room on the 4th floor (410) which I recommend (as it's opposite the crowded street).

The room was spacious, clean, small bar full of stuff (we haven't used anything though). WC & bath looked cleaned and ok.

Breakfast was the usual hotel breakfast (several types of bread, cheese, some bacon, orange juice, coffee, corn flakes etc.) Good, nothing to comment on, except the restaurant is at the 9th front and gives you an awesome panorama of the city... There aren't many cities with close airports, so it's quite impressive to sit there, eat, and watch big planes crossing the blue sky going to land... You could ask some of the staff the permission to go onto the balcony, they'll let you, especially if the 10th floor is closed (the sky panorama room).

All in all, it was a pleasant experience, but I think the prices have gotten a little higher since the other reviews (we had the night as a prepaid gift, but I've seen the price in the lobby to be 90 € / night / DBL.

We stayed here for 4 nights (friends of ours also stayed here) and all of us were very pleased with the accommodations.

It was very clean and in good shape. Bathroom was ultra-clean and had quality fixtures. Bedding was good quality and bed was comfortable.

Room was not too big, but I don't live in my hotel room. It's just someplace to sleep and get refreshed.

Very close to Metro stop at Marques de Pombal and nice neighbourhood. Two grocery stores just feet away and a small fridge in the room for storing perishables (or chilling white wine).

No complaints. Would stay there again (57 euros a night including breakfast)

I stayed in this hotel in March for 5 nights with my bf and we really enjoyed, of course it is not the luxury on Marriot but it is all decnt tourist could need.Romm we got was on the 8 floor, with rather nice view, small but useful bathroom and not big but enough for night stay only room.

Beds were comfortable with clean sheets.

The only thing was the closet which in my opinion could have nicer smell.

Breakfast was fulfiling although moderate (one kind of luncheon and chees, some friut, yougurth and coffe/tea).Breakfast is served at the top floor with splendid views on the city of Lisbon.

When next time in Lisbon will stay there for sure as the price is ubeatable:
49 EUR for double room with breakfast.

Really recommend it.