Stayed at the Playa Sol 1 Figuretas Ibiza, in June, and although we must have been the oldest couple in this hotel we found No problem with noise. Ok - the younger generation were getting ready to go out at around 3 am, just as we were coming home, and then returning around 7.30 am but although we did hear them, they created no problems.
As for continuous noise - are people not allowed to enjoy themselves when they are on holiday. My partner and I are in our 50's and found the younger generation in the hotel, polite, well mannered, well behaved people who had gone to Ibiza to enjoy themselves.
The staff were excellent, very helpfull and polite.
All in all this is a very well equipped hotel if you only want basic, reasonable priced accomodation.
