I visit Los Alcazares sometimes to buy from an Indian shop and my dentist is there. It's a holiday town so quiet off season and manic in season. The airport is right there so planes fly over, LOW, several times a day. Lots of bars and eateries as is the norm. Just a typical tourist town really. Depends what you want.
Super place, but take a look at Santiago de la Ribera & Lo Pagan...a bit more lively along the promenades but similar to LA quiet through the winter season.
Felt safe there every time we have travelled.