My wife and I tend to stay in fairly small boutique hotels but for a family event we spent two nights in the Puente Romano at the end of October. Perhaps it's not somewhere we'd go back to but overall we were very impressed.
First things first, the hotel is enormous. Absolutely vast. We were travelling with our baby and just pushing her to reception took 10 minutes. Lots of swimming pools (a few closed as it was October) and restaurants - all very well kept with beautiful flowers, plants everywhere and everything very clean. The beach was very peaceful and relaxed though I imagine it wouldn't be at the height of the season.
Our suite was huge. Extremely luxurious. A massive living room, a nice patio and a huge marble bathroom with a nice bath and separate walk-in shower. Two tvs, one with DVD player, all the mod cons, nice toileteries, bathrobes etc. Bed was very comfy.
Service followed the general theme of the hotel. Very proper, friendly and ever so slightly formal .
The hotel is clearly however not for everyone - and I have to say that while we had a lovely stay it probably isn't quite one for us to return to. The hotel does feel like a very self-contained holiday complex especially given the location which, while relatively convenient for short drives to Puerto Banus and Marbella, does means that you can't actually really walk anywhere from the hotel.
It is also perhaps a hotel for old or middle aged English people who seem to make up the vast majority of guests. For me the ambience is summed up by the fact that in the evenings the nice bar area plays host to a very cheesy seventies style singer. Not quite our thing but i'm sure it appeals to others. Decor is very nice but while the hotel does have the mod cons it is certainly not trendy or modern.
To sum up then we had a brilliant stay in a stunning room - just be aware that it's an old-style hotel which may not appeal to everyone.