We stayed at La Manga Club Resort for 2 weeks (July 2016). The apartment is fantastic - very spacious, well maintained and clean on arrival. There are great views out across the resort to the sea from the balcony and helpful guides provided.The apartment is very well equipped and comfortable. It is also very conveniently situated for the tennis centre, swimming pools shops and restaurants. We emailed the owners with a couple of questions while staying and they were quick to respond/help - thanks! I have no problems recommending this apartment.
The only things to be aware of are:
a) We had a car which was ideal for getting about the resort especially in the heat. The apartment is on the ground floor but accessed up a hill/steps which is typical for most of the accommodation in this area. This may not be ideal for anyone with mobility issues;
b) The apartment is situated in a block. We were unlucky to have some noisy neighbours who several times partied with shouting and loud music on their balcony until the early hours. I do not think this is typical of La Manga Club Resort and was is just down to the luck (or not) of who is staying next to you.