I went to marbella for the weekend with friends and we stayed in senorio de aloha apartments they were great had everythink you need, only 15 mins walk from port i would stay in them again if i went back ,there is a little restaurant buy the entrance which is ok for anyone how does not want to walk far but you must try the chinese called zen just up the hill to the left its sign posted there is also a cafe/restaurant called the starz which is great for breakfast and lunch but if you are on a buget the supermarket is just next to the starz cafe ,we had to pay 100 pounds deposit for each apartment as bond and you get it back at the end of your stay we lost a set of keys to one of the apartments so we lost the deposit as they said they had to replace the locks on the door so be careful you only get 1 set of keys per apartment its a little expensive in the port but you can do it on the cheap if you are not going clubbing ore you dont go to ocean club overall thums up for marbella .

stayed here for 10 days... apartment okay but the general complex was not good.
We had to deal with a lot of noise from the surrounding apartments into the early hours of every morning! lots of broken glass around the paths which was not swept up during our 10day stay... didnt use the complex pools as it was mobbed by stag and hen parties types - . we will definitely not be reivsiting this complex and will do our best to avoid the now raucous puerto banus too in the future. It has changed considerably (and not for the better) since our last visit to this area 10 years ago.
oh, and there are a lot of residents with small yapping dogs who seemed to quite enjoy barking all night to the tunes of the stags and hens...

The Senorio de Aloha complex consiste of 5 apartment blocks each of 4/5 stories around 3 pools about 20 minutes walk (short uphill and longer downhill) to Puerto Banus port.
We had booked privately with an apartment owner through holiday-rentals.com and the 2 bedroom and 2 bathroom apartment was perfectly adequate having front and back facing balconies, good air-con and reasonably spacious for 4 with a well equipped kitchen.
The pools were very well kept with crystal clear water. During the second week we did have to play the 'towels on sunbeds' game as the complex was busier (though clearly many aprtments were not in use). They could do with adding some more sunbeds to stop the rush. 24hour security was in place and there were no disturbances etc at night.
There is a good restaurant 'Cafe Pasta' opposite the site, a further Pizza restaurant close by and a good Indian and American restaurant 100m up the hill along with a supermarket, newsagents, a small Thai stall with some tables and a very small bar.
There are other restaurants in the vicinity but depending on the level of heat you may wish to drive rather than walk as the roads around are fairly hilly.
There is a good and large market 100m from the complex each Saturday morning.
Purto Banus itself is only OK. It is nice to walk through the harbour area and see the boats and supercars. However, unless you pay harbour prices there are only limited additional restaurants in the back streets. I cannot comment on the night life.
The main drawback of S de A that we found is that there are no decent bars within a short walking distance to relax with a cocktail or a beer etc in nice surroundings without walking all the way to the port.
Would I go to S de A again? Maybe for a cheap weeks get-away break, but not again for a fortnight. Mind you I would answer the same if the question was regarding Costa del Sol. It is perfectly adequate, very relaxing but unlikely to leave long lasting memories.