I stayed 4 days at Portobelo Plaza, and I don´t recommend it.
Despite the good location, the hotel is inadequate in terms of good reception.
Imagine that you cannot serve your breakfast and you can eat only one bread, or one fruit. When I complain, the person who serves said: you pay for one breakfast.
The control of the air is done in the reception, and 2 temperatures: COLD OR TURN OFF.
The hotel has no hot bath, our room had no windows that could be open, and also without curtains that darken the room.
I went to Bogota, Cartagena and San Andres. All reservations were made in the internet, and only the owner of this hotel required payment antecipated. This must be the reason, because certainly I would have been just one day.
Do not go to this place!

The owner refused to refund the remaining days of my stay (I checked out early - after staying 4 nights) due to Hurricane Ida. Terrible attitude from the owner.

DO NOT RECOMMEND

I had a great time! Portobelo is a small nice hotel at the beach, clean, with comfortable beds, air condition + fan, good food (I loved the fish !!) nice people, fast internet (WiFi) and laundry service.
At the beach, in front of the hotel you have other nice people, who rent chairs & sell small little things to eat and drinks. Only some steps and you are in the city center.
Lots of shops, bars and restaurants. Enjoy your shopping !!!
I made an Island tour and got hundreds of nice photos, met lots for friendly people.You can do a lot of different kind of watersports, so I made a mini-diving course at Karibik Diver and hope to get back under water next time. I am sure, I will be back to "my" small little paradise in the Caribbean Sea soooooon :-)))

Portobelo is great. Not just the location (right in front of the beach), but also the price. The best part is the staff, who are extremely friendly. An additional plus is the free wireless internet, which--despite what the SanAndres scuba diver said--works wonderfully. You'll find that it's much, much faster than any internet cafe on the island.