There seems to be some confusion in the reviews for this hotel. There is no train station in Platj d'Aro and no train tracks. From Barcelona you need to take the SARFA bus, and the SARFA bus station is very close to the hotel, about a five minute walk.
The hotel is right on the main beach. The only thing between the hotel and the main beach is the Passeig Maritim, which is basically an esplanade -- excellent for morning walks. I discovered that I actually prefer the smaller Cala Rovira beach which you can walk to along the esplanade, about 10 mins.
The room was fine, and well cleaned each day. The bathroom was a bit too small for my tastes, but other than that, no problem. Also, there was a lot of storage for your bags. To use the safe in your room you need to rent a lock and key from the front desk. This is common in one- and two-star hotels in Spain and drives me crazy. The last thing I want, when going to the beach, is a key to worry about. I wish they would install the keypad operated safes and charge an extra two Euros a day! I took a side balcony room, judging the premium you had to pay for a sea-facing room to be too much. I got a north side room and was very pleased with the view (you can see the sea, but only with a side view).
I took the B&B option, although they offer half and full board. Breakfast was okay -- about normal for Spain, except for the coffee which was a bit below average. Coffee in Spanish hotels is usually very good and the coffee here was okay, but not up to Spanish standards. They had bacon and eggs which is not always the case in Spain, plus the usual sliced meats and cheese, croissants and other baked goods.
The front desk people were friendly and helpful, in Spanish. I heard no English spoken in the hotel, either at the front desk or in the breakfast room. The hotel is mostly Spanish and Catalan speaking guests, with some French. I don't know how many front desk people speak English, as I speak passable Spanish, but I'm guessing not everyone on the desk speaks English. One night I was talking to my wife in English and about to get a bottle of water from the machine when the man on the desk very helpfully told me it would be a lot cheaper to pop down to the bar and buy it there -- in Spanish. Usually in major Spanish tourist areas hotel people speak English to me the minute they hear my accent. By the way, this is not a criticism -- I prefer to speak Spanish. It's a warning for people for whom English speaking front desk people is an important consideration.
The roof pool is very small -- just for children, really. The beds and chaises longues on the roof were very nice and fairly plentiful. I didn't try the exercise room.
The wi-fi connection in the room worked pretty well. TV was limited.
The only other comment is that this hotel is very serious about providing wheelchair access. Lots of hotels pay lip service, but here they really did a good job. I don't need wheelchair access but if you do, I think you will be impressed.
If I'm ever in Platja d'Aro again I'll look at hotels on the Cala Rovira beach first, strictly for locational preference. If none look appealing I'll definitely stay at the Planmar again.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.